Poly(phenol/diene) resin and rubber adhesive compositions tackified therewith
US3944523A · kind A · utility
12Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1973 |
| Grant date | Mar 16, 1976 |
| Priority date | — |
| Expiry date | Oct 23, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Non-conjugated dienes are reacted with phenolic compounds in the presence of a Friedel-Crafts catalyst to produce poly(phenol/diene) copolymer resin having repeating alternate phenol and diene units, a number average molecular weight of 600-5000 and a glass transition temperature of 100.degree.-220.degree.C. The resin, and its partially or fully hydrogenated counterpart, can be blended with various rubbery polymers to provide adhesive compositions having improved adhesive tack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.