Claims
- 1. An isocyanate functional polymer which comprises the saturated, ungelled addition polymerization reaction product of:
- (a) 1 to 100% by weight of at least one isocyanate functional ethylenically unsaturated monomer which comprises the reaction product obtained by the gradual addition of an ethylenically unsaturated monomer having a single active hydrogen to a diisocyanate selected from the group consisting of isophorone diisocyanate and 2,4 toluene diisocyanate wherein the final molar ratio of active hydrogen containing monomer to diisocyanate is essentially 1 to 1; and
- (b) 0 to 99% by weight of at least one ethylenically unsaturated monomer which is free of active hydrogen functionality and which is copolymerizable with the ethylenically unsaturated isocyanate functional monomer.
- 2. The isocyanate functional polymer of claim 1 further characterized in that the ethylenically unsaturated monomer having a single active hydrogen has the structure: ##STR6## wherein R.sub.1 is H or CH.sub.3 ; A is straight chain or branched and is either a carbonyloxyalkylene radical containing 2 to about 8 carbon atoms or an aralkylene radical containing 7 to about 12 carbon atoms, and Z is OH or NHR.sub.3 wherein R.sub.3 is a straight chain or branched alkyl radical of 1 to about 6 carbons.
- 3. The isocyanate functional polymer of claim 1 further characterized in that the ethylenically unsaturated monomer having a single active hydrogen has the structure: ##STR7## wherein R.sub.1 is H or CH.sub.3 ; R.sub.2 is a straight chain or branched alkyl radical of 1 to about 8 carbons; and
- Z is OH or NHR.sub.3 where R.sub.3 is a straight chain or branched alkyl radical of 1 to about 6 carbons.
- 4. The isocyanate functional polymer of claim 1 further characterized in that a major portion of the reaction product obtained by the reaction of the diisocyanate and the active hydrogen functional unsaturated monomer is an isocyanate functional ethylenically unsaturated monomer having the structure: ##STR8## wherein R.sub.1 =H or CH.sub.3 R.sub.2 =a straight chain or branched alkyl radical of 1 to about 6 carbons ##STR9## where R.sub.3 is a straight chain or branched alkyl radical of 1 to about 6 carbons ##STR10##
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of copending application Ser. No. 609,943 filed May 14, 1984 now abandoned.
US Referenced Citations (19)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2618980 |
May 1982 |
DEX |
Non-Patent Literature Citations (3)
Entry |
Chem. Abstracts, 86:108158x. |
Chem. Abstracts, 90:205138f. |
Frank N. Jones, S. Peter Pappas, Hiro-Kuni Ono, Eric H. Urruti, and I-Chyang Lin; Recent Developments in Crosslinking Chemistry; Feb. 13-15, 1985, p. 8-24. |