公开(公告)号：US20200017736A1

公开(公告)日：2020-01-16

申请号：US16579301

申请日：2019-09-23

Applicant: Stepan Company

Inventor： Warren A. Kaplan ,  Sarah Wolek

IPC: C09J175/04 ,  C08G18/42 ,  C08G18/20 ,  C08G18/32 ,  C08G18/66 ,  C08G18/76 ,  E04D5/14

Abstract: A low-VOC, two-component polyurethane adhesive is provided. The polyurethane adhesive has an A-side that includes an isocyanate and a non-reactive plasticizer, and a B-side that includes an aliphatic polyester polyol, a non-polyester polyol, and a urethane catalyst. The A-side and the B-side are reacted at a volume ratio of 1:1 and formulated at an NCO/OH index within the range of 0.90 to 1.10. The polyurethane adhesive is solvent-free and is particularly suitable for adhering a polymeric membrane to a substrate.

公开(公告)号：US20160002386A1

公开(公告)日：2016-01-07

申请号：US14853659

申请日：2015-09-14

Applicant: Stepan Company

Inventor： Sarah Wolek ,  Warren A. Kaplan ,  Laura Schreiner ,  Chunhua Yao ,  David J. Norberg

IPC: C08G18/42 ,  C08L75/04 ,  C08G18/72 ,  C08G63/181 ,  C08G63/183

CPC classification number: C08G18/4263 ,  C08G18/092 ,  C08G18/163 ,  C08G18/1808 ,  C08G18/1816 ,  C08G18/225 ,  C08G18/4018 ,  C08G18/4027 ,  C08G18/4211 ,  C08G18/4213 ,  C08G18/4288 ,  C08G18/4829 ,  C08G18/544 ,  C08G18/72 ,  C08G18/7664 ,  C08G63/181 ,  C08G63/183 ,  C08G63/46 ,  C08G2101/00 ,  C08G2101/0025 ,  C08G2101/005 ,  C08G2105/02 ,  C08L75/04

Abstract: An aromatic polyester polyol having a nominal functionality of at least about 2 is produced from the esterification reaction of a phthalate-based composition containing less than 50 mol % of ortho-phthalic acid or phthalic anhydride, with a hydroxyl material containing at least 20 mol % of at least one branched aliphatic diol, and optionally transesterified with at least one hydrophobic material. The polyester polyol has improved shelf-life stability as demonstrated by the polyester polyol remaining clear and homogeneous for at least 6 months when stored at room temperature. The polyester polyol, when incorporated into a polyol foam-forming resin composition in an amount of at least 40 wt %, results in polyurethane and polyisocyanurate foams that exhibit low smoke and weight loss upon burning conditions.

Abstract translation: 由邻苯二甲酸酯类组合物的含邻苯二甲酸邻苯二甲酸酐或邻苯二甲酸酐的邻苯二甲酸酯类组合物与含有至少20mol％邻苯二甲酸酐的羟基材料的酯化反应产生具有至少约2的标称官能度的芳族聚酯多元醇， 的至少一种支化脂族二醇，并任选地与至少一种疏水性材料酯交换。 聚酯多元醇具有改善的保质期稳定性，如聚酯多元醇在室温下储存时保持透明和均匀至少6个月所证明的。 聚酯多元醇当以至少40重量％的量掺入多元醇发泡树脂组合物中时，导致聚氨酯和聚异氰脲酸酯泡沫在燃烧条件下表现出低的烟雾和重量损失。