Cyanoacrylate dental adhesive compositions
US4136138A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1976 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Jul 23, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J4/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An adhesive composition comprising Components A, B and C as follows: PA1 A. a polymerizable monomeric 2-cyanoacrylate containing portion comprising PA2 1. from 60 to 90 parts by weight of allyl 2-cyanoacrylate; PA2 2. from 3 to 25 parts by weight of an alkyl 2-cyanoacrylate having the formula ##STR1## wherein R is alkyl having 60 to 10 carbon atoms; 3. FROM 0.25 TO 5 PARTS BY WEIGHT OF A DIFUNCTIONAL MONOMER DIESTER OF AN ACID FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACID AND AN AROMATIC DIOL; AND PA2 4. from 3 to 15 parts by weight of a 2-cyanoacrylate compatible polymeric thickener; PA1 B. from 0.05 to about 1.5 weight percent based upon the weight of component A of a cyclic imino initiator selected from 2,4,6-tri(allyloxy)-S-triazine, 2,4,6-tri(alkyloxy)-S-triazines having 1 to about 20 exocyclic carbon atoms, benzoxazole and substituted benzoxazoles; and PA1 C. an amount of an organic peroxide free radical providing compound sufficient to cause crosslinking of a difunctional monomer diester with the 2-cyanoacrylates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.