Polyolefin-based composition, adhesives, and related multi-layered structures prepared therefrom
US9593269B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2015 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Sep 22, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2451/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A polyolefin-based composition made from or containing (A) a first polymer composition made from or containing a polyolefin grafted with an unsaturated monomer, (B) a second polymer composition made from or containing a polyethylene, and (C) a third polymer composition made from or containing (i) a first polyisobutylene and (ii) a second polyisobutylene. The first polyisobutylene has a Viscosity Average Molecular Weight (VAMW1), and the second polyisobutylene has a Viscosity Average Molecular Weight (VAMW2), wherein VAMW1≠VAMW2. The polyolefin-based composition is useful as an adhesives or a tie-layer adhesive composition for multi-layered structures. In particular, the composition is useful as an adhesive to bind a metal layer to a dissimilar substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.