Adhesive compositions and method employing same
US4126504A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1977 |
| Grant date | Nov 21, 1978 |
| Priority date | — |
| Expiry date | Jan 27, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249997
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Improved, fast curing adhesives, with and without fillers, and articles bonded therewith are provided. The adhesive comprises a first part made up of a thermoplastic, non-reactive elastomeric polymer dissolved in an addition polymerizable combination of an acrylic or methacrylic monomer, a copolymerizable monomer containing at least one free carboxylic acid group, and a non-activated free radical addition polymerization catalyst system, and a second part comprising an activator for the free radical catalyst system. Exemplary of such a formulation is a first part made up of a elastomer, e.g. an acrylonitrile/butadiene rubber dissolved in a mixture of acrylic acid and methyl methacrylate, each of the three components being present in equal amounts. About 5 weight percent benzoyl peroxide and about 0.1 weight percent hydroquinone are dissolved in the mix. The resulting formulation has a high degree of relative stability in the absence of an activator for the benzoyl peroxide. An appropriate second part, i.e., activator, comprises a tertiary amine, such as N,N-dimethyl aniline, diethyl aniline, N,N-dimethyl-p-toluidine. The second part may also contain an oxidizable heavy metal salt or…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.