Method of making an encapsulated assemblage
US4749430A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1986 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Oct 16, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31612
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An encapsulated assemblage and a process for making comprising: PA0 (a) silanizing a substrate; PA0 (b) coating the silanized substrate with at least one thin extruded coherent film consisting essentially of: PA1 (1) about 75-90 parts by weight of: PA2 (a) about 65 to about 75 parts of a selectively hydrogenated two-block polymer (A-B) such that prior to hydrogenation, PA3 (1) each A is a polymer block of a monovinyl or alpha alkyl monovinyl arene having a number average molecular weight of 5000 to 75,000 and comprising from about 10 to about 40% by weight of the total block copolymer, and PA3 (2) each B is a polymer block having a number average molecular weight of 10,000 to 150,000 and comprising from about 90 to about 60% weight of the total block copolymer, and PA2 (b) about 25 to about 35 parts by weight of a selectively hydrogenated multiblock copolymer (A-B) such that: PA3 (1) each A is a polymer endblock of a monovinyl or alpha alkyl monovinyl arene having a number average molecular weight of 5,000 to 75,000, said A blocks comprising from about 10 to about 40% by weight of the total block copolymer, and PA3 (2) each B is a polymer midblock having a number average molecular …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.