Binders for the preparation of polyurethane finishes
    1.
    发明授权
    Binders for the preparation of polyurethane finishes 失效
    用于制备聚氨酯涂料的粘合剂

    公开(公告)号:US4778854A

    公开(公告)日:1988-10-18

    申请号:US149105

    申请日:1988-01-27

    摘要: Binders contain(A) copolymers of(a) from 5 to 70% by weight of monoesters of acrylic acid and/or methacrylic with dihydric to hexahydric C.sub.2 -C.sub.18 -alcohols,(b) from 0.1 to 80% by weight of esters or amides of acrylic acid and/or methacrylic acid with monofunctional C.sub.2 -C.sub.20 -alcohols or -amines which have an open-chain and/or cyclic urea group in the ester or amide radical,(c) from 1 to 60% by weight of esters of acrylic acid and/or methacrylic acid with monofunctional C.sub.1 -C.sub.20 -alcohols and(d) from 0 to 60% by weight of other comonomers, and(B) polyisocyanates, some or all of whose isocyanate groups may be blocked with CH--, NH--- or OH--acidic blocking agents and which have an isocyanate functionality of from 2.5 to 6.These binders are employed for the preparation of polyurethane finishes, which are used to produce coatings.

    摘要翻译: 粘合剂含有(a)5-70重量%丙烯酸和/或甲基丙烯酸与二元至六元C 2​​ -C 18醇的单酯的共聚物,(b)0.1-80重量%的酯或酰胺 的丙烯酸和/或甲基丙烯酸与在酯或酰胺基中具有开链和/或环状脲基团的单官能C 2 -C 20醇或胺,(c)1至60重量%的 丙烯酸和/或甲基丙烯酸与单官能C 1 -C 20醇和(d)0至60重量%的其它共聚单体,和(B)多异氰酸酯,其一部分或全部异氰酸酯基可被CH - ,NH - 或OH-酸性封闭剂,其异氰酸酯官能度为2.5至6.这些粘合剂用于制备用于生产涂料的聚氨酯表面处理剂。