The present invention is concerned with novel oxazolidines, polyoxazolidines, and particularly polymers of both condensation and addition type containing 1,3-oxazolidine groups linked to the polymer through an aliphatic ester linkage. They are the products of reaction between (1) 3-glycidyl-1,3-oxazolidines which may be substituted in the 2-position with an alkyl or aralkyl group and (2) a monocarboxylic acid, a polycarboxylic acid, or a polymer (of addition or condensation type) containing at least one carboxyl group. The polymeric products have improved adhesion when employed as adhesive or coating materials. The oxazolidine in such polymeric substances improves the usefulness of the polymers in regard to adhesiveness or cohesiveness when such polymers are used as coating compositions, adhesive compositions and for the molding of plastic articles. The non-polymeric products serve as intermediates which can be used as reactive components to react with carboxyl groups of addition or condensation polymers to introduce oxazolidine groups into such polymers to modify their adhesiveness. This application also covers methods of producing the new oxazolidine products and moisture-curable mixtures of a polyisocyanate and a reaction product of (1) and (2) above.
本发明涉及新型
噁唑烷、聚
噁唑烷,尤其是含有1,3-
噁唑烷基通过
脂肪族
酯键连接到
聚合物上的缩合型和加成型
聚合物。它们是由以下反应产生的产物:(1) 3-环
氧基-1,3-
噁唑烷,可以在2-位上用烷基或芳基烷基取代;(2) 单
羧酸、多
羧酸或至少含有一个羧基的
聚合物(加成型或缩合型)。当作为粘合剂或涂料材料时,这些
聚合物的粘附性得到了改善。这些
聚合物物质中的
噁唑烷增加了
聚合物在涂料组合物、粘合组合物和塑料制品成型时的粘附性或内聚性的有用性。非
聚合物产品可作为
中间体,可用作与加成或缩合
聚合物的羧基反应的反应组分,以将
噁唑烷基引入这些
聚合物中,从而改变它们的粘附性。本申请还涵盖了生产新型
噁唑烷产品和含有(1)和(2)的反应产物的聚
异氰酸酯和
水固化混合物的方法。