中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.023 seconds)

    POLYESTER-EPOXIDE POLYMER COMPOSITIONS
    2.
    发明申请
    POLYESTER-EPOXIDE POLYMER COMPOSITIONS 审中-公开
    聚酯 - 环氧化物聚合物组合物

    公开(公告)号：WO2018038908A1

    公开(公告)日：2018-03-01

    申请号：PCT/US2017/045860

    申请日：2017-08-08

    Applicant: STEPAN COMPANY

    Inventor： KAPLAN, Warren, A. ,  WESTFALL, Jennifer, S.

    IPC: C08G59/62 ,  C08L63/00 ,  C08L67/02 ,  C08G59/42 ,  C08G63/91

    Abstract: Polyester-epoxide polymer (PEEP) compositions are disclosed. The PEEP compositions comprise a reaction product of a polyepoxide compound (eq. wt. 125 to 250 g/eq.) and a polyester polyol composition. The ratio of epoxy equivalents to hydroxyl equivalents is within the range of 0.8 to 3.5. The PEEP composition has a T g within the range of -40°C to 60°C. Elevated temperature-cure and low temperature-cure processes for making the PEEP compositions are also disclosed. In a simple yet innovative approach, a new class of polymers useful for adhesives, coatings, elastomers, and other valuable products is assembled from readily available starting materials without reliance on polyisocyanates or polyamines. The PEEP compositions have increased elongation and lower T g when compared with traditional epoxy products.

    Abstract translation: 公开了聚酯 - 环氧化物聚合物（PEEP）组合物。 PEEP组合物包含聚环氧化合物（当量125-250g / eq。）和聚酯多元醇组合物的反应产物。 环氧当量与羟基当量的比例在0.8至3.5的范围内。 PEEP组合物具有在-40℃至60℃范围内的T g。 也公开了用于制造PEEP组合物的升高的温度固化和低温固化方法。 在一种简单而又创新的方法中，可用于粘合剂，涂料，弹性体和其他有价值产品的新一类聚合物由易得的起始材料组装而不依赖于多异氰酸酯或多胺。 与传统环氧产品相比，PEEP组合物具有增加的伸长率和更低的Tg。

    SOLID-SOLID PHASE-CHANGE MATERIALS
    3.
    发明申请
    SOLID-SOLID PHASE-CHANGE MATERIALS 审中-公开

    公开(公告)号：WO2019164883A1

    公开(公告)日：2019-08-29

    申请号：PCT/US2019/018688

    申请日：2019-02-20

    Applicant: STEPAN COMPANY

    Inventor： CUI, Zhenhua ,  KAPLAN, Warren, A. ,  WOLEK, Sarah

    IPC: C09K5/14 ,  C08G59/62 ,  C08G65/331

    Abstract: Polyether- or polyester-epoxide polymer (PEEP) compositions are disclosed. The compositions comprise reaction products of a polyepoxide compound and a polyol composition. The polyol composition has a melting point within the range of 20°C to 100°C and a hydroxyl number less than 35 mg KOH/g. The PEEP composition is a solid- solid phase-change material. As measured by differential scanning calorimetry (DSC) at a heating/cooling rate of 10°C/minute, the PEEP composition has a transition temperature within the range of -10°C to 70°C, a latent heat at the transition temperature within the range of 30 to 200 J/g, and little or no detectable hysteresis or supercooling upon thermal cycling over at least five heating/cooling cycles that encompass the transition temperature. The PEEP compositions should enable formulators to manage thermal energy changes in many practical applications, including automotive, marine or aircraft parts, building materials, appliance insulation, electronics, textiles, garments, and paints or coatings.

    POLYETHER-EPOXIDE POLYMER COMPOSITIONS
    4.
    发明申请
    POLYETHER-EPOXIDE POLYMER COMPOSITIONS 审中-公开

    公开(公告)号：WO2018182770A1

    公开(公告)日：2018-10-04

    申请号：PCT/US2017/045867

    申请日：2017-08-08

    Applicant: STEPAN COMPANY

    Inventor： KAPLAN, Warren, A. ,  WESTFALL, Jennifer, S.

    IPC: C08G59/62 ,  C08G65/331 ,  C09D163/00

    Abstract: Polyether-epoxide polymer compositions are disclosed. The compositions comprise a reaction product of a polyepoxide compound and a polyol composition comprising a polyether polyol. The ratio of epoxy equivalents to hydroxyl equivalents is within the range of 0.5:1 to 3:1. The polyether-epoxide composition has a Tg within the range of -40°C to 60°C. The polyether polyol has a hydroxyl value within the range of 150 to 800 mg KOH/g and an average hydroxyl functionality within the range of 3.5 to 8.0. In some aspects, the polyol composition further comprises a polyester polyol. Low- and elevated-temperature processes catalyzed by bases or Lewis acids for making the polyether-epoxide compositions are also disclosed. In a simple yet innovative approach, a new class of polymers useful for coatings, elastomers, adhesives, sealants, and other valuable products is assembled from readily available starting materials without reliance on polyamines or polyisocyanates.

    POLYOL BLENDS AND RIGID FOAMS WITH IMPROVED LOW-TEMPERATURE R-VALUES
    6.
    发明申请
    POLYOL BLENDS AND RIGID FOAMS WITH IMPROVED LOW-TEMPERATURE R-VALUES 审中-公开

    公开(公告)号：WO2019199629A1

    公开(公告)日：2019-10-17

    申请号：PCT/US2019/026253

    申请日：2019-04-08

    Applicant: STEPAN COMPANY

    Inventor： KAPLAN, Warren, A. ,  CUI, Zhenhua ,  WOLEK, Sarah

    IPC: C08G18/76 ,  C08G18/40 ,  C08G18/42 ,  C08G18/36

    Abstract: Blends comprising an aromatic polyester polyol and a 1 to 10 wt.% of a fatty acid derivative are disclosed. The fatty acid derivative is a C 8 to C 18 fatty acid ester or a C 8 to C 18 fatty acid amide. Also disclosed are rigid PU or PU-PIR foams that comprise a reaction product of water, a catalyst, a foam-stabilizing surfactant, a polyisocyanate, a blowing agent, and the polyester polyol/fatty acid derivative blends. Surprisingly, low- temperature R-values of rigid foams based on pentane blowing agents can be improved significantly by using blends of aromatic polyester polyols and a minor proportion of readily available fatty acid derivatives. In some aspects, the difference between initial R- values of the foam measured at 75°F and 40°F is at least 5% greater than that of a similar foam prepared in the absence of the fatty acid derivative.

    PROMOTED MEMBRANE FOR SINGLE-PLY ROOFING
    7.
    发明申请
    PROMOTED MEMBRANE FOR SINGLE-PLY ROOFING 审中-公开

    公开(公告)号：WO2018191075A1

    公开(公告)日：2018-10-18

    申请号：PCT/US2018/026075

    申请日：2018-04-04

    Applicant: STEPAN COMPANY ,  CARLISLE INTANGIBLE COMPANY

    Inventor： KAPLAN, Warren, A. ,  WOLEK, Sarah ,  HEISHMAN, Mike ,  SCHNEIDER, William, J.

    IPC: C08J5/00 ,  C08L23/16

    Abstract: A promoted membrane suitable for use in single-ply roofing applications is disclosed. The membrane comprises EPDM rubber and 0.1 to 10 wt.% of an adhesion promoter. The promoter comprises a polyester resin having a hydroxyl number within the range of 28 to 250 mg KOH/g, a content of terephthalate recurring units within the range of 40 to 65 wt.% based on the amount of polyester resin, and a glass-transition temperature within the range of 40°C to 80°C. Roofing systems comprising the promoted EPDM membranes are also disclosed. Compared with an unpromoted membrane, the promoted membranes provide a substantial and unexpected boost in peel strength such that the roofing systems resist weather-induced failure of the bond between the roofing membrane and the roof substrate. The invention helps roofers minimize or limit the aggravation and cost of warranty claims from customers whose buildings and contents may otherwise be damaged or destroyed by exposure to wind and/or rain.

    ISOCYANATE-MODIFIED POLYESTER-EPOXIDE POLYMER COMPOSITIONS
    9.
    发明申请
    ISOCYANATE-MODIFIED POLYESTER-EPOXIDE POLYMER COMPOSITIONS 审中-公开

    公开(公告)号：WO2018160217A1

    公开(公告)日：2018-09-07

    申请号：PCT/US2017/045865

    申请日：2017-08-08

    Applicant: STEPAN COMPANY

    Inventor： KAPLAN, Warren, A. ,  WESTFALL, Jennifer, S.

    IPC: C08G18/00 ,  C08G18/42 ,  C08G18/18 ,  C09D175/06 ,  C08L75/06 ,  C09J175/06 ,  C08G18/76

    Abstract: Isocyanate-modified polyester-epoxide polymer (i-PEEP) compositions are disclosed. The i-PEEP compositions comprise a reaction product of a polyepoxide compound, a polyisocyanate, and a polyester polyol composition. The ratio of epoxy equivalents to hydroxyl equivalents is within the range of 0.2 to 2. The i-PEEP index as defined herein is within the range of 100 to 200. The i-PEEP composition has a T g within the range of -30°C to 35°C. Low- and elevated-temperature processes catalyzed by bases or Lewis acids for making the i-PEEP compositions are also disclosed. In a simple yet innovative approach, a new class of polymers useful for coatings, elastomers, adhesives, sealants, and other valuable products is assembled from readily available starting materials without reliance on the polyamines typically used to cure epoxy systems.

    METHOD OF IMPROVING MECHANICAL STRENGTH OF FLEXIBLE POLYURETHANE FOAMS MADE FROM BIO-BASED POLYOLS, THE POLYOL COMPOSITIONS UTILIZED THEREIN AND THE FOAMS PRODUCED THEREBY
    10.
    发明申请
    METHOD OF IMPROVING MECHANICAL STRENGTH OF FLEXIBLE POLYURETHANE FOAMS MADE FROM BIO-BASED POLYOLS, THE POLYOL COMPOSITIONS UTILIZED THEREIN AND THE FOAMS PRODUCED THEREBY 审中-公开
    提高生物聚合物柔性聚氨酯纤维的机械强度的方法，使用其中的多元醇组合物及其生产的原料

    公开(公告)号：WO2011057018A1

    公开(公告)日：2011-05-12

    申请号：PCT/US2010/055514

    申请日：2010-11-04

    Applicant: STEPAN COMPANY ,  KAPLAN, Warren, A. ,  GUO, Xiuguang, A. ,  NORBERG, David, J.

    Inventor： KAPLAN, Warren, A. ,  GUO, Xiuguang, A. ,  NORBERG, David, J.

    IPC: C08G18/00

    CPC classification number: C08G18/4018 ,  C08G18/4072 ,  C08G18/4211 ,  C08G18/4261 ,  C08G18/4288 ,  C08G18/4854 ,  C08G18/4887 ,  C08G18/632 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083 ,  C08G2350/00

    Abstract: A method of improving the mechanical strength of polyurethane foams made from bio-based polyols, the polyol-containing compositions utilized in the method of the invention, and the polyurethane foams produced by the method of the invention are provided. The method of the invention involves the incorporation of aromatic polyester polyol in the polyol-containing composition used to manufacture the foams. In one embodiment, the aromatic polyester polyol is utilized in a polyol-containing composition which is employed in the manufacture of flexible polyurethane foam. In another embodiment, the aromatic polyester polyol transesterified with a natural oil-containing composition to form a transesterification reaction product that is utilized in a polyol-containing composition which is employed in the manufacture of flexible polyurethane foam. Flexible polyurethane foams of the invention exhibit substantial improvements in mechanical strength properties, such as tear strength, tensile strength and elongation relative to foams made from bio-based polyols such as soybean oil-based polyols.

    Abstract translation: 提供了一种提高由生物基多元醇制成的聚氨酯泡沫体的机械强度的方法，本发明方法中使用的含多元醇的组合物和通过本发明的方法生产的聚氨酯泡沫材料。 本发明的方法涉及在用于制造泡沫的含多​​元醇的组合物中引入芳族聚酯多元醇。 在一个实施方案中，芳族聚酯多元醇用于制备柔性聚氨酯泡沫塑料的含多元醇的组合物中。 在另一个实施方案中，所述芳族聚酯多元醇用含天然油的组合物酯交换形成酯交换反应产物，其用于制备柔性聚氨酯泡沫塑料的含多元醇的组合物中。 本发明的柔性聚氨酯泡沫体相对于由诸如大豆油多元醇的生物基多元醇制成的泡沫体的机械强度性能，例如撕裂强度，拉伸强度和伸长率，显示出显着的改善。

Patent Agency Ranking