http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1222816-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cab52e15e149d28af8f65d84a58daeca |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F230-085 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-914 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F283-01 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F283-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 |
| filingDate | 1967-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_df57e08409ab3593a4e864825bb42424 |
| publicationDate | 1971-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1222816-A |
| titleOfInvention | Polymers containing silicon |
| abstract | 1,222,816. Polymers having silyl-containing thioglycollate end-groups. MIDLAND SILICONES Ltd. 28 Oct., 1968 [16 Oct., 1967], No. 47084/67. Headings C3R, C3S and C3T. An organic silicon-containing polymer is prepared by reaction of a hydroxyl-containing organic polymer with thioglycollic acid or an ester thereof, and reaction of the product with an organic silicon compound containing at least one Si-bound radical CHR = CR<SP>1</SP>(CH 2 ) n -, wherein R and R<SP>1</SP> are each H or an alkyl radical and n is 0, 1, 2 or 3. Suitable hydroxylcontaining polymers are polyesters, polyethers, epoxy resins and phenolic resins. The first reaction is conducted above 60‹ C., if desired in the presence of a condensation catalyst, and the second at 50-150‹ C., optionally in the presence of a free radical catalyst. Preferably the unsaturated silicon compound is a silane having at least one hydrolysable group, e.g. a halogen or H atom, a C 1-6 alkoxy or acyloxy or an oximo group; the product polymer may then be crosslinked by exposure to moisture in the presence of a condensation catalyst, optionally after compounding with solvents, fillers, pigments and plasticizers. In examples thioglycollic acid is heated at 130-180‹ C. with a hydroxy adipic acid/diethylene glycol polyester or a glycerol based polyether or a polypropylene glycol; the products are heated at 80-130‹ C. with allyl triethoxysilane or vinyl methyl dimethoxysilane in the presence of benzoyl peroxide; these products are mixed with dibutyltin dilaurate or diacetate or stannous octoate or tetra-isopropyl titanate or dipropyl titanium acetoacetonate chelate, and cured to rubbers by exposure to moist air. Uses: sealing, coating and insulating compositions. |
| priorityDate | 1967-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.