摘要:
Enhanced oligomeric polyols are reported. The enhanced oligomeric polyols may be prepared by a method comprising the steps of: (a) providing an oligomeric polyol that comprises at least one glycerol fatty acid ester having at least one glycerol fatty acid ester bond; wherein at least 5% of the ethyldenyl groups (*C═C*) in the glycerol fatty acid ester are substituted with a bonding structure selected from the group consisting of: C-*C—C*-C; O-*C—C*-O; C=*C—C*-C, and mixtures thereof, where * is used to denote the original carbon atoms in the ethylidenyl group; and (b) cleaving at least a portion of the glycerol fatty acid ester bonds to form the enhanced oligomeric polyol. The enhanced oligomeric polyols are useful in making polymers such as polyurethanes.
摘要翻译:报道了增强低聚多元醇。 增强的低聚多元醇可以通过包括以下步骤的方法制备:(a)提供包含至少一种具有至少一种甘油脂肪酸酯键的甘油脂肪酸酯的低聚多元醇; 其中所述甘油脂肪酸酯中的至少5%的乙烯基(* C = C *)被选自以下的键合结构取代:C- * C-C * -C; O- * C-C * -O; C = * C-C * -C及其混合物,其中*用于表示亚乙基中的原始碳原子; 和(b)切割甘油脂肪酸酯键的至少一部分以形成增强的低聚多元醇。 增强的低聚多元醇可用于制备聚合物如聚氨酯。
摘要:
Enhanced oligomeric polyols are reported. The enhanced oligomeric polyols may be prepared by a method comprising the steps of: (a) providing an oligomeric polyol that comprises at least one glycerol fatty acid ester having at least one glycerol fatty acid ester bond; wherein at least 5% of the ethyldenyl groups (*C═C*) in the glycerol fatty acid ester are substituted with a bonding structure selected from the group consisting of: C—*C—C*—C; O—*C—C*—O; C═*C—C*—C, and mixtures thereof, where * is used to denote the original carbon atoms in the ethylidenyl group; and (b) cleaving at least a portion of the glycerol fatty acid ester bonds to form the enhanced oligomeric polyol. The enhanced oligomeric polyols are useful in making polymers such as polyurethanes.
摘要:
A method of producing a foam is disclosed. The method includes providing an epoxy-containing compound, a cationic catalyst, an optional blowing agent, and at least one additive. The method further includes combining the epoxy-containing compound with the cationic catalyst, the optional blowing agent, and the at least one additive, wherein the epoxy-containing compound and the cationic catalyst react to polymerize the epoxy-containing compound to provide the foam having a density from about 0.3 lbs/ft3 to about 5.0 lbs/ft3 as measured by ASTM D1622. Further disclosed are the foam and a method for installing the foam.
摘要:
An isocyanate prepolymer for application in polyurethanes. The prepolymer is synthesized by combining epoxidized natural oils with isocyanates and a catalyst. The prepolymer contains oxazolidone rings that will react with polyols to form polyurethane. The invention provides a method of using a renewable resource in a fast, simple process to produce substantial amounts of isocyanate prepolymer and a minimum of homopolymers.