http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-729006-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b94baf1aad802afc19b0e63b4499b04d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F214-182 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F236-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F214-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F236-04 |
| filingDate | 1953-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1955-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-729006-A |
| titleOfInvention | Improvements in or relating to copolymers of 1,3-butadiene and 1.1-difluoro-2,2-dichloroethylene |
| abstract | Copolymers of 1,3-butadiene and 1,1-difluoro-2,2-dichloroethylene containing 30 to 50 mol. per cent bound 1,1-difluoro-2,2-dichloroethylene may be prepared by polymerizing monomeric mixtures of 1,3-butadiene and 1,1-difluoro-2,2-dichloroethylene containing more than 35 mol. per cent, preferably 35-65 mol. per cent of 1,1-difluoro - 2,2 - dichloroethylene. Polymerization may be effected in bulk, solution or aqueous emulsion in the presence of a fatty acid, rosin acid or amine soap or an alkyl, aryl or aralkyl sulphate or sulphonate as emulsifier, or in suspension in the presence of a suspension agent such as gelatine, casein, clay, or polyvinyl alcohol, and in the presence of a catalyst such as potassium persulphate, benzoyl peroxide, cumene hydroperoxide or alpha-alpha1-azodiisobutyronitrile. A redox system may also be utilized, e.g. one using cumene hydroperoxide in the presence of sodium sulphite and tetraethylene pentamine. Modifying agents such as dodecyl mercaptan, xanthogen disulphides and carbon tetrachloride may be utilized and the reaction may be stopped at any desired degree of conversion by the use of a polymerization terminator such as hydroquinone or by dumping the reaction mix into alcohol. The copolymers of the invention may be plasticized with ester plasticizers such as dibutyl, dioctyl or di-isooctyl phthalate, tricresyl phosphate, dioctyl adipate or dibutyl or dioctyl sebacate, which may be mixed with the copolymer by mechanical means or by adding the plasticizer in emulsion to a copolymer latex. |
| priorityDate | 1952-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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