Polyamide-hydrogenated polybutadiene-acrylonitrile copolymers
US5349018A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1992 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Jan 15, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G81/028
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyamide-hydrogenated polybutadiene-acrylonitrile block copolymers having high solubility in organic solvents, good compatibility with other polymers, and excellent thermal resistance and adhesive properties are characterized by comprising block units (A) represented by the following formula (I) and block units (B) represented by the following formula (III): ##STR1## wherein Bu is hydrogenated butadiene radical, R is divalent organic radical, R' is a divalent aromatic group having a hydroxyl group, Ar is an aromatic divalent group represented by the following formulae (1)-(6): ##STR2## each of k and z is an average polymerization degree where k is an integer of 2-400, and z is an integer of 5-100, m and n are molar fractions in the copolycondensation, where m.gtoreq.0.04, and m+n=1, and x and y are molar fractions in the copolymerization, where x:y=0.95:0.05 to 0.6:0.4, and x+y=1, and block units (A) and (B) are contained in the range of 2 to 20, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.