公开(公告)号：US5352710A

公开(公告)日：1994-10-04

申请号：US884737

申请日：1992-05-15

Applicant: Leone Lauri

Inventor： Leone Lauri

IPC: C08J9/06 ,  C08G18/08 ,  C08G101/00 ,  C08J9/10 ,  C08K3/22 ,  C08K5/09 ,  C08L27/06 ,  C08F14/06

CPC classification number: C08J9/10 ,  C08J2201/026 ,  C08J2327/06 ,  C08J2351/00

Abstract: A cellular, foamed-polymer product is disclosed, which is constituted by a mixture comprising: at least one isocyanate, at least one anhydride, at least one vinylidene compound, poly-(vinyl chloride), at least one foaming agent, a heat stabilizer, calcium stearate and zinc stearate.The product production scraps and processing wastes and residues are not riskful for health and environment, and can be disposed of as "waste similar to solid municipal waste".

Abstract translation: 公开了一种细胞泡沫聚合物产品，其由包含以下物质的混合物构成：包含至少一种异氰酸酯，至少一种酸酐，至少一种亚乙烯基化合物，聚（氯乙烯），至少一种发泡剂，热稳定剂 ，硬脂酸钙和硬脂酸锌。 产品生产废料和加工废物和残留物对健康和环境不具危害性，可以作为“与固体城市垃圾相似的废物”处理。

公开(公告)号：US12110374B2

公开(公告)日：2024-10-08

申请号：US17582508

申请日：2022-01-24

Applicant: USI Corporation

Inventor： Yung-Shen Chang ,  Chun-Fan Hsieh ,  Yu-Hsiang Lin

IPC: C08J9/00 ,  A43B13/04 ,  A43B17/00 ,  C08J9/06 ,  C08J9/10 ,  C08J9/12

CPC classification number: C08J9/0023 ,  A43B13/04 ,  A43B17/003 ,  C08J9/0028 ,  C08J9/103 ,  C08J9/104 ,  C08J2201/026 ,  C08J2203/04 ,  C08J2331/04

Abstract: A recyclable crosslinked polymeric foam includes a reaction product of 0.1 to 10 parts by weight of a crosslinking agent and 0.1 to 5 parts by weight of a radical initiator, based on 100 parts by weight of a polymeric material. The crosslinking agent is represented by the following formula:




wherein R is an alkylene group having 2 to 10 carbon atoms, an arylene group having 6 to 18 carbon atoms, or a cycloalkylene group having 6 to 18 carbon atoms.

公开(公告)号：US12060470B2

公开(公告)日：2024-08-13

申请号：US17279840

申请日：2019-09-27

Applicant: SEKISUI CHEMICAL CO., LTD.

Inventor： Asami Nagai ,  Daisuke Mukohata

IPC: C08K5/00 ,  B32B5/18 ,  C08J5/18 ,  C08J9/00 ,  C08J9/10 ,  C08K5/521 ,  C08L23/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C09J7/24 ,  C09J7/26 ,  B32B27/32 ,  C08G101/00 ,  C08K5/136

CPC classification number: C08J9/0061 ,  B32B5/18 ,  C08J5/18 ,  C08J9/0038 ,  C08J9/103 ,  C08K5/0066 ,  C08K5/521 ,  C08L23/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C09J7/243 ,  C09J7/26 ,  B32B27/32 ,  B32B2264/02 ,  B32B2266/025 ,  B32B2307/3065 ,  B32B2405/00 ,  C08G2101/00 ,  C08J9/0019 ,  C08J2201/026 ,  C08J2201/03 ,  C08J2203/04 ,  C08J2323/06 ,  C08J2323/10 ,  C08J2323/12 ,  C08J2323/14 ,  C08J2323/16 ,  C08J2423/06 ,  C08K5/136 ,  C08L2201/02 ,  C08L2203/14 ,  C08L2205/025 ,  C09J2301/122 ,  C09J2301/124 ,  C09J2301/41 ,  C09J2400/243 ,  C09J2423/006 ,  Y10S428/921 ,  Y10S521/907 ,  Y10T428/249953 ,  Y10T428/249986 ,  Y10T428/28

Abstract: The present invention provides a polyolefin resin foam sheet having an area density of 5 g/m2 or more and 400 g/m2 or less, and having a time (t) required for a weight decrease from 90% by mass to 10% by mass, of 9 minutes or more, as measured by thermogravimetric analysis carried out at a heating rate of 10° C./min and a measurement temperature of 23° C. to 550° C. According to the present invention, a polyolefin resin foam sheet can be provided that has a high fire retardancy while maintaining a lightweight property.

公开(公告)号：US20240247110A1

公开(公告)日：2024-07-25

申请号：US18027543

申请日：2021-12-17

Applicant: LG Chem, Ltd.

Inventor： Hyemin Lee ,  Jungmin Sohn ,  Jihye Ryu ,  Chang Hun Han ,  Taebin Ahn

IPC: C08J3/075 ,  C08J3/12 ,  C08J3/24 ,  C08J9/12 ,  C08K3/36 ,  C08K5/00 ,  C08K5/098

CPC classification number: C08J3/075 ,  C08J3/12 ,  C08J3/245 ,  C08J9/122 ,  C08K3/36 ,  C08K5/0025 ,  C08K5/098 ,  C08J2201/026 ,  C08J2205/022 ,  C08J2205/044 ,  C08J2333/02

Abstract: The present disclosure relates to a super absorbent polymer and a method for preparing the same. More specifically, it relates to a super absorbent polymer including a plurality of micropores, specifically an average of 7 or more micropores per particle, having an average diameter of 100 μm or less and a maximum diameter of 300 μm or less, and thus exhibiting an improved absorption rate and a high surface tension, and a method for preparing the super absorbent polymer.

公开(公告)号：US12030967B2

公开(公告)日：2024-07-09

申请号：US17057790

申请日：2019-10-01

Applicant: LG Chem, Ltd.

Inventor： Tae Young Won ,  Jungmin Sohn ,  Hyemin Lee ,  Junwye Lee ,  Seongbeom Heo ,  Kwangin Shin ,  Chang Hun Han

IPC: C08F2/44 ,  B01J20/26 ,  B01J20/30 ,  C08F2/01 ,  C08F220/06 ,  C08J3/24 ,  C08J9/08 ,  C08J9/36

CPC classification number: C08F2/44 ,  B01J20/267 ,  B01J20/3064 ,  C08F2/01 ,  C08F220/06 ,  C08J3/245 ,  C08J9/08 ,  C08J9/36 ,  B01J2220/68 ,  C08J2201/026 ,  C08J2333/08

Abstract: The present disclosure relates to a preparation method of a super absorbent polymer capable of preparing a super absorbent polymer exhibiting an improved absorption rate while reducing an amount of a blowing agent used. The preparation method of a super absorbent polymer includes: preparing a monomer mixture including a water-soluble ethylene-based unsaturated monomer having at least partially neutralized acidic groups and an internal cross-linking agent; adjusting a dynamic pressure applied to the monomer mixture being transferred to 140 Pa or more by controlling a transfer rate while transferring the monomer mixture to a polymerization reactor; cross-linking and polymerizing the monomer mixture transferred to the polymerization reactor to form a hydrogel polymer; drying, pulverizing and classifying the hydrogel polymer to form a base resin powder; and further cross-linking a surface of the base resin powder in the presence of a surface cross-linking agent to form a surface cross-linked layer.

公开(公告)号：US12024625B2

公开(公告)日：2024-07-02

申请号：US18138294

申请日：2023-04-24

Applicant: The Regents of the University of California

Inventor： Marco Rolandi ,  John Felts

IPC: C08L5/08 ,  B63B32/40 ,  C08J9/30

CPC classification number: C08L5/08 ,  B63B32/40 ,  C08J9/30 ,  C08J2201/026 ,  C08J2205/052 ,  C08J2205/10 ,  C08J2207/00 ,  C08L2201/06 ,  C08L2203/14

Abstract: Closed cell chitin foam is provided. The closed-cell chitin foam composition does not absorb water, is biodegradable, and is mechanically characterized by a density range of 16 to 800 kg/m3, closed-cell pore sizes ranging from 50 microns to 1 mm, an elastic modulus of 3 to 175 MPa, and a tensile strength of 0.15 to 6.5 MPa. The chitin is at least 70% acetylated. In one aspect, the foam is enclosed in a shell e.g. in the form of a surfboard. Chitin foam according to this invention is fully biodegradable. The chitin foam overcomes the current problems with foams that contain polyurethane and polystyrene, and which are manufactured from petroleum-based sources. Petroleum based foams are not renewable, have an adverse impact on our environment, and pose significant health hazards to those who manufacture them. The chitin foam with its water-based manufacturing process and naturally sourced chitin, solves these problems.

公开(公告)号：US20240166787A1

公开(公告)日：2024-05-23

申请号：US18548637

申请日：2022-03-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joshua M. Fishman ,  Bryan T. Whiting ,  Kathleen S. Shafer ,  Nicholas L. Untiedt ,  Michael E. Griffin

IPC: C08F220/18 ,  C08F2/50 ,  C08F220/06 ,  C08F220/20 ,  C08F220/28 ,  C08F222/22 ,  C08G59/24 ,  C08J5/18 ,  C08J9/00 ,  C08J9/10 ,  C08K5/23 ,  C08K5/3462 ,  C09J5/08 ,  C09J7/30 ,  C09J133/08 ,  C09J163/00

CPC classification number: C08F220/1804 ,  C08F2/50 ,  C08F220/06 ,  C08F220/1811 ,  C08F220/20 ,  C08F220/281 ,  C08F222/22 ,  C08G59/245 ,  C08J5/18 ,  C08J9/0061 ,  C08J9/102 ,  C08K5/23 ,  C08K5/3462 ,  C09J5/08 ,  C09J7/30 ,  C09J133/08 ,  C09J163/00 ,  C08J2201/026 ,  C08J2203/04 ,  C08J2333/10 ,  C08J2363/02 ,  C09J2301/312 ,  C09J2301/416 ,  C09J2301/502 ,  C09J2400/24

Abstract: Compositions are provided including a free-radically reactive component, a photoradical generator, and either a crosslinker having a photodegradable linkage or a chemical blowing agent, an epoxy component, and a photoacid generator. Polymeric films including reaction products of the compositions are also provided. A debondable article including a polymeric film containing a crosslinker having a photodegradable linkage is further provided, as well as a method of debonding the article. Foam compositions are also provided, including foamed matrices including the reaction products of the compositions. Further, articles and foam adhesives are provided including a substrate and a composition or foam composition disposed on the substrate. A method is additionally provided, including dispensing a composition onto a substrate; subjecting the composition to light radiation having a wavelength band of 50 nanometers or less to initiate polymerization of the composition; and subjecting the composition to light and/or heat radiation, wherein the light radiation has at least one wavelength that is outside the wavelength band of the light radiation of step b) to initiate foaming of the composition. A crosslinker is further provided, including a photodegradable linkage.

公开(公告)号：US11945927B2

公开(公告)日：2024-04-02

申请号：US17254916

申请日：2020-02-26

Applicant: SEIKO PMC CORPORATION

Inventor： Ryo Miyamori ,  Daisuke Kuroki ,  Hideya Sekiguchi ,  Akihiro Sato

IPC: C08J3/22 ,  C08J5/04 ,  C08J5/06 ,  C08J9/00 ,  C08J9/10

CPC classification number: C08J9/0085 ,  C08J3/226 ,  C08J9/0061 ,  C08J9/103 ,  C08J2201/026 ,  C08J2315/00 ,  C08J2323/06 ,  C08J2323/16

Abstract: [Problem] An object of the present invention is to provide a foam including a thermoplastic resin and rubber as a main component, in which a micronized product of a cellulose fiber is uniformly dispersed, and uniformity and mechanical properties are excellent. [Solution] A foam includes a modified cellulose fiber (A) covalently bonded with a diene-based polymer, a thermoplastic resin and/or rubber (B), and a diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber, in which the fiber (A) is micronized, the fiber (A) has a content of 0.05 to 20% by mass, and the thermoplastic resin and/or rubber (B) has a glass transition point of −130° C. to 120° C.

公开(公告)号：US11926739B2

公开(公告)日：2024-03-12

申请号：US17385000

申请日：2021-07-26

Applicant: MCPU POLYMER ENGINEERING LLC

Inventor： Thomas M. Garrett ,  Swarup Kumar Maiti

IPC: C08L97/00 ,  C07G1/00 ,  C08G18/12 ,  C08G18/18 ,  C08G18/42 ,  C08G18/48 ,  C08G18/64 ,  C08G18/76 ,  C08G101/00 ,  C08H7/00 ,  C08J9/14 ,  C08K3/22 ,  C08K3/30 ,  C08K3/32 ,  C08K5/00 ,  C08K5/521

CPC classification number: C08L97/005 ,  C07G1/00 ,  C08G18/12 ,  C08G18/18 ,  C08G18/4208 ,  C08G18/4837 ,  C08G18/6492 ,  C08G18/7657 ,  C08H6/00 ,  C08J9/141 ,  C08K3/22 ,  C08K3/30 ,  C08K3/32 ,  C08K5/0066 ,  C08K5/521 ,  C08G2101/00 ,  C08G2110/0025 ,  C08J2201/026 ,  C08J2203/14 ,  C08J2205/10 ,  C08J2375/06 ,  C08J2375/12 ,  C08K2003/2248 ,  C08K2003/3045 ,  C08K2003/321

Abstract: Modified lignin products, processes for making them, and their use to produce rigid polyurethane or polyisocyanurate foams are disclosed. The processes comprise heating a lignin source with a nitrogen source and a starved concentration of a C1-C5 aldehyde to give a reaction mixture comprising a Mannich condensation product, neutralizing the reaction mixture, and isolating the modified lignin product. The process is performed at a mass ratio of lignin source to nitrogen source within the range of 1:1 to 1:5 and at a molar ratio of nitrogen source to C1-C5 aldehyde within the range of 3.5:1 to 1:1. Polyol blends and performance additives that contain the modified lignin products are described. Rigid foams that process well and incorporate up to 60 wt. %, based on the amount of polyol component, of the modified lignin contribute to excellent flame retardancy and low-temperature R-value performance.

公开(公告)号：US20230407037A1

公开(公告)日：2023-12-21

申请号：US18251159

申请日：2021-03-30

Applicant: Dow Global Technologies LLC

Inventor： Bo Lyu ,  Xiaochun Liu ,  Jinliang Yan

IPC: C08J9/228 ,  C08J9/12

CPC classification number: C08J9/228 ,  C08J9/122 ,  C08J2201/026 ,  C08J2323/08

Abstract: The present disclosure relates to a high energy return foam and method for preparing the same.