Claims
- 1. A method of surface treating a reinforcing material, comprising contacting a reinforcing material with an aqueous surface-treating agent comprising a carbodiimide compound, wherein the carbodiimide compound is water-soluble or self-emulsifiable and is represented by the following formula
- Z--OOC--NH--(R.sub.3 --NCN).sub.n --R.sub.3 --NH--COO--Z
- wherein R.sub.3 is a residue of a diisocyanate compound selected from the group consisting of
- m- or p-tetramethylxylylene diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, and
- isophorone diisocyanate;
- Z is a residue of a poly(alkylene oxide) which has at least one reactive hydroxyl group and is blocked with an alkoxyl group at one terminal and which is represented by the following formula
- R.sub.8 --(O--CHR.sub.9 --CH.sub.2).sub.m --OH
- wherein R.sub.8 is a lower alkyl group having 1-4 carbon atoms, R.sub.9 is a hydrogen atom or a methyl group, and m is an integer of 4 to 30;
- and n is an integer of 2 to 30,
- and wherein the reinforcing material is selected from the group consisting of glass fiber, carbon fiber and aramid fiber.
Priority Claims (1)
Number |
Date |
Country |
Kind |
6-210418 |
Aug 1994 |
JPX |
|
Parent Case Info
This application is a division of application Ser. No. 08/672,401, filed Jun. 21, 1996, now U.S. Pat. No. 5,728,432, which is a continuation of application Ser. No. 08/510,171, filed Aug. 2, 1995, and now abandoned.
US Referenced Citations (17)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0 537 644 A1 |
Apr 1993 |
EPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
672401 |
Jun 1996 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
510171 |
Aug 1995 |
|