公开(公告)号：US4962164A

公开(公告)日：1990-10-09

申请号：US211639

申请日：1988-06-27

Applicant: Saleh A. Jabarin ,  Dennis C. Balduff

Inventor： Saleh A. Jabarin ,  Dennis C. Balduff

IPC: C08L67/02 ,  C08L101/00

CPC classification number: C08L67/02 ,  C08L101/00 ,  C08L2201/06

Abstract: Degradable compositions of polyesters, polyamides, polystyrenes and polyvinyl chlorides containing effective degradable amounts of CO in the composition.

Abstract translation: 在组合物中含有有效降解量的CO的聚酯，聚酰胺，聚苯乙烯和聚氯乙烯的可降解组合物。

公开(公告)号：US4941948A

公开(公告)日：1990-07-17

申请号：US195865

申请日：1988-05-19

Applicant: Junsaburo Yamamoto

Inventor： Junsaburo Yamamoto

IPC: B27N3/00 ,  C08L1/02 ,  C08L97/02 ,  D21J3/00

CPC classification number: B27N3/002 ,  C08L97/02 ,  C08L1/02 ,  C08L2201/06

Abstract: Economical manufacturing of wood powder-molded products becomes possible with the introduction of wood pulp as the binding agent to be used in combination with water. The molded products feature not only high moisture absorbing capability and a unique natural touch of hybrid between wood and paper, but easy and convenient disposability after use. The product can be molded into any shape, but the method would be more suitable for manufacturing small-size pellet products form the practical standpoint to perform drying (dehydration) process. This invention enables to utilize wood powder resources including sawdust, which is currently disposed of in a huge amount as the industrial waste, all over the world.

Abstract translation: 通过引入木浆作为与水结合使用的粘合剂，木粉成型产品的经济制造成为可能。 成型产品不仅具有高吸湿能力，而且木材和纸张之间具有独特的混合自然感，使用后易于使用，易于使用。 该产品可以模制成任何形状，但是从执行干燥（脱水）过程的实际角度来看，该方法将更适合于制造小尺寸颗粒产品。 本发明能够利用世界各地目前处理大量工业废料的木屑资源，其中包括锯屑。

公开(公告)号：US4873270A

公开(公告)日：1989-10-10

申请号：US153889

申请日：1988-02-09

Applicant: Jean-Marc Aime ,  Georges Mention ,  Andre Thouzeau

Inventor： Jean-Marc Aime ,  Georges Mention ,  Andre Thouzeau

IPC: B29C43/24 ,  B29K75/00 ,  B29L7/00 ,  C08J5/18 ,  C08K5/12 ,  C08L75/00 ,  C08L75/04 ,  C08L75/06

CPC classification number: C08L75/06 ,  C08L2201/06

Abstract: A substance based on polyurethane from which biodegradable materials can be obtained by rolling comprises, as well as a polyurethane resin serving as its essential constituent, a carbohydrate, at least one second thermoplastic polymer which is miscible in the molten state with the polyurethane resin and/or at least one third biodegradable polymer chosen from among biodegradable aliphatic polyesters, preferably of the same nature as the polyurethane resin used.

Abstract translation: 可以通过轧制得到可生物降解材料的基于聚氨酯的物质，以及作为其主要成分的聚氨酯树脂，碳水化合物，至少一种第二热塑性聚合物，其与熔融状态与聚氨酯树脂和/ 或选自可生物降解的脂肪族聚酯中的至少一种第三种可生物降解的聚合物，优选与所用的聚氨酯树脂具有相同的性质。

公开(公告)号：US20240352249A1

公开(公告)日：2024-10-24

申请号：US18687679

申请日：2022-08-30

Applicant: CJ CHEILJEDANG CORPORATION

Inventor： Bo-Seok SONG ,  Ki Chull YOON ,  Minho JUNG ,  Eun Jung SIM

IPC: C08L67/04 ,  C08L67/02 ,  D01F6/84

CPC classification number: C08L67/04 ,  C08L67/02 ,  D01F6/84 ,  C08L2201/06 ,  C08L2205/025 ,  C08L2205/03

Abstract: The present invention relates to a composition for a biodegradable fiber and a biodegradable fiber manufactured using same. In detail, according to an embodiment of the present invention, the composition for biodegradable fibers contains a polyhydroxyalkanoate (PHA) resin bearing 4-hydroxybutyrate (4-HB) repeating units and specifically a first PHA resin and/or a second PHA resin, each bearing 4-HB repeating units and meets a degradation temperature (Td 5% weight loss) of 220° C. or higher as measured by a thermal gravimetric analyzer. Thus, the composition is eco-friendly with excellent biodegradability and biocompatibility and can be used to easily manufacture biodegradable fibers having excellent properties.

公开(公告)号：US12122870B2

公开(公告)日：2024-10-22

申请号：US17304496

申请日：2021-06-22

Applicant: Akina, Inc

Inventor： John Solomon Garner ,  Kinam Park

IPC: C08L67/04 ,  C08G63/08 ,  C08G63/12 ,  C08G63/82 ,  C08L67/00

CPC classification number: C08G63/12 ,  C08G63/08 ,  C08G63/82 ,  C08L67/04 ,  C08L2201/06 ,  C08L2203/202 ,  C08L2203/206 ,  C08L2312/00

Abstract: A solid crosslinked polyester composition is disclosed wherein the crosslinked polyester is environmentally degradable in less than about 180 days. The crosslinked polyester is the polyesterification reaction product between one or more multi-hydroxylic alcohols, one or more hydroxy acids, and one or more multi-carboxylic acid compounds. Alternately, the crosslinked polyester is the polyesterification reaction product between one or more multi-hydroxylic alcohols, one or more hydroxy acids, one or more multi-carboxylic acid compounds, and a cyclic ester.

公开(公告)号：US20240336775A1

公开(公告)日：2024-10-10

申请号：US18579979

申请日：2022-07-20

Applicant: CARBIOLICE

Inventor： Chloe GUILLAUMONT ,  Clementine ARNAULT ,  Yannick CHARPENTIER

IPC: C08L67/04 ,  B32B27/08 ,  B32B27/36 ,  C08J3/22 ,  C08K3/26

CPC classification number: C08L67/04 ,  B32B27/08 ,  B32B27/36 ,  C08J3/226 ,  C08K3/26 ,  B32B2250/24 ,  B32B2250/40 ,  B32B2307/7163 ,  C08J2367/04 ,  C08J2405/00 ,  C08K2003/265 ,  C08L2201/06 ,  C08L2310/00

Abstract: The invention relates to a method for preparing a masterbatch (or “masterbatch”) comprising a polysaccharide, enzymes and a low-melting polymer in a mixer. In particular, this masterbatch is used for the manufacture of items made of a biodegradable plastic material.

公开(公告)号：US20240336774A1

公开(公告)日：2024-10-10

申请号：US18294351

申请日：2022-08-08

Applicant: SOCIETE DES PRODUITS NESTLE S.A.

Inventor： MICHAEL KARLHEINZ HAUSMANN ,  LISE ZEBOUDJ

IPC: C08L67/04 ,  B29C49/04 ,  B29K67/00 ,  B29L31/00 ,  C08K7/02 ,  C08L97/02

CPC classification number: C08L67/04 ,  B29C49/04 ,  C08K7/02 ,  C08L97/02 ,  B29K2067/04 ,  B29K2995/006 ,  B29L2031/7158 ,  C08K2201/004 ,  C08L2201/06

Abstract: The present invention primarily concerns a hollow container made of a polymeric compound, characterized in that said polymeric compound comprises: (i) a polyhydroxyalcanoate (PHA) resin, and (ii) hardwood cellulose fibres having a length comprised within the range of 15 μm to 150 μm, preferably within the range of 20 μm to 120 μm, and having a density of at least 1.0 g/cm3, preferably of at least 1.5 g/cm3, and said fibres being present in an amount of more than 50% wt. of the total compound weight.

公开(公告)号：US20240336045A1

公开(公告)日：2024-10-10

申请号：US18696105

申请日：2022-02-17

Applicant: Lam'On LTD

Inventor： Filip Spasov Ublekov

IPC: B32B27/08 ,  B29C48/00 ,  B29C48/21 ,  B29C48/88 ,  B29K33/00 ,  B29K67/00 ,  B29K77/00 ,  B29K105/00 ,  B29L9/00 ,  B32B27/30 ,  B32B27/34 ,  B32B27/36 ,  B32B27/38 ,  C08L67/04

CPC classification number: B32B27/08 ,  B32B27/302 ,  B32B27/308 ,  B32B27/34 ,  B32B27/36 ,  B32B27/38 ,  C08L67/04 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/21 ,  B29C48/9115 ,  B29K2033/00 ,  B29K2067/046 ,  B29K2077/00 ,  B29K2105/0085 ,  B29K2995/0041 ,  B29K2995/0077 ,  B29K2995/0097 ,  B29L2009/00 ,  B32B2250/24 ,  B32B2270/00 ,  B32B2307/702 ,  B32B2307/7163 ,  B32B2307/7376 ,  C08L2201/06 ,  C08L2203/16 ,  C08L2205/03

Abstract: A multilayer biodegradable film is based on polylactides (polylactic acid), preferably obtained by reactive coextrusion, and may include at least one first layer A and at least one second layer B, in which the layer A and layer B are different from each other and the layer A includes: i) a minimum of 75 wt. % amorphous polylactic acid (PLA) with D isomer content ≥5%; and ii) triblock epoxy styrene-acrylate copolymer up to 5 wt. % of the total polylactic acid in this layer; and layer B includes: i) a minimum of 75 wt. % semi-crystalline polylactic acid with a degree of crystallinity ≥20% and low content of D isomer ≤5%; and ii) triblock epoxy styrene-acrylate copolymer up to 5 wt. % of the total polylactic acid in this layer. The multilayer biodegradable film may be three-layered and obtained by the blown extrusion method.

公开(公告)号：US12098275B2

公开(公告)日：2024-09-24

申请号：US17381407

申请日：2021-07-21

Applicant: Xerox Corporation

Inventor： Alexandros Vasileiou ,  Valerie M. Farrugia

IPC: C08L67/04 ,  C08J3/12 ,  C08K3/32 ,  C08K3/36 ,  C08L1/02 ,  B82Y30/00

CPC classification number: C08L67/04 ,  C08J3/128 ,  C08K3/32 ,  C08K3/36 ,  C08L1/02 ,  B82Y30/00 ,  C08K2003/325 ,  C08K2201/003 ,  C08K2201/011 ,  C08L2201/06

Abstract: Compositions include a plurality of polymer particulates comprising a matrix polymer and one or more types of nanoparticles selected from the group consisting of biopolymer nanoparticles, biomineral nanoparticles excluding biomineralized silica alone, and any combination thereof. Illustrative examples of such nanoparticles may include cellulose nanoparticles, hydroxyapatite nanoparticles, or any combination thereof associated with the matrix polymer. The polymer particulates may be prepared by melt emulsification. Methods include depositing such polymer particulates in a powder bed; and heating a portion of the powder bed to consolidate a portion of the polymer particulates into a consolidated part having a specified shape. The matrix polymer may be biodegradable and lose at least about 40% mass in six days in a phosphate buffer solution (0.2 M, pH 7.0) containing 0.2 mg/mL of lipase obtained from Pseudomonas cepacia (≥30 U/mg) and incubated at 37° C.

公开(公告)号：US20240309204A1

公开(公告)日：2024-09-19

申请号：US18565034

申请日：2021-12-10

Applicant: LG CHEM, LTD.

Inventor： Wooseon CHOI ,  Byeong Joon JEONG ,  Se Young JANG ,  Young Hyun CHOI

IPC: C08L67/02 ,  C08J5/18

CPC classification number: C08L67/02 ,  C08J5/18 ,  C08J2367/02 ,  C08J2451/06 ,  C08J2467/04 ,  C08L2201/06 ,  C08L2203/162 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2205/08

Abstract: Provided is a resin composition that includes a polybutylene adipate terephthalate (PBAT), a polylactic acid (PLA), and a maleic anhydride modified polyolefin elastomer, and a biodegradable resin molded product comprising the same. The resin composition includes a biodegradable polyester, and thereby can provide resin products, such as hot sealing films and hot sealing bags, that are excellent in biodegradability and can realize high seal strength even at a low temperature during hot sealing.