Adhesive blends and composite structures comprising acid or anhydride modified PE + hope + polypropylene
US4409364A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1981 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Dec 4, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Compositions of matter having properties that make them strong adhesives to various substrates and especially for extrusion adhesion to various polar substrates. These compositions comprise blends of a graft copolymer of a polyethylene backbone grafted with at least one grafting monomer comprising one or more polymerizable ethylenically unsaturated carboxylic acids or the anhydrides of such acids blended with a blending resin that is a mixture of one or more high density polyethylenes and one or more polypropylenes. The disclosure also includes composite structures and their method of making comprising one or more substrates and a blend of the above as the adhesive in contact with and united with the substrate or substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.