Cationically co-curable polysiloxane release coatings
US5576356A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1994 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Nov 2, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2107
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides a radiation curable release coating composition comprising: PA1 (a) about 1 to about 50 percent by weight of a cationically reactive polydiorganosiloxane liquid rubber having the following formula: ##STR1## wherein R are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl wherein at least about 50% of the total number of silicon atoms have two methyl groups bonded thereto; PA2 E is an organic monovalent functional group comprising from about 1 to about 20 carbon atoms having at least one cationically co-reactive functional group; PA2 a and b both represent integers, wherein the sum of a plus b is an integer of about 10 to about 1200; PA2 b has a value ranging from about 0 to about 0.2a; PA2 a is an integer of about 10 to about 1000; and PA2 M is a silyl group which must contain at least one cationically co-reactive functional group when b=0 and may contain at least one cationically co-reactive group when b is greater than 0; PA1 (b) about 50 to about 99 percent by weight of at least one cationically co-reactive monomer copolymerizable with said cationically co-reacti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.