http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1439577-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_01c1e0bc0628f76dea731cda5a666ca1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-337 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-337 |
| filingDate | 1974-06-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1439577-A |
| titleOfInvention | Process for preparing polyoxalkylene having allyl end-group |
| abstract | 1439577 Polyoxyalkylenes KANEGAFUCHI KAGAKU KOGYO KK 6 June 1974 [7 June ]973 21 May 1974] 25080/74 Heading C3R Polyoxyalkylenes, having allyl end-groups, are prepared by: (A) subjecting an alkylene oxide (I) to addition polymerization, in the presence of 2-30 mole per cent of KOH (relative to I) for 1-40 hours at 20-100 C. with agitation; (B) reacting the resultant polyoxyalkylene (II) with a haloallyl compound (III) in an amount of not less than one mole per endgroup of II at 20-100 C. for 10 minutes to 2 hours. The KOH is for the most part dispersed in the reaction mass. In an alternative embodiment a haloorgano compound (IV) having at least 2 halogen atoms is reacted with II for 10 mins to 3 hours prior to reaction with III. KOH may be used alone or in conjunction with up to 3 mole per cent, relative to I of an initiator, e.g. monohydric alcohols containing an allyl group (V), polyhydridric alcohols (VI), a metal of Group Ia of the Periodic Table or an alkoxide thereof with V or VI. I may be ethylene-propylene-, iso-butylene-1-butene- or 2-methylbutene oxide. II may be allyl chloride. Examples of III are methylene chloride or bromide; chloroform; benzal chloride; bis-(chloromethyl)-, bis-(bromomethyl)- or tris-(chloromethyl)-benzene; bis-(chloromethyl) ether; bis-(chloromethyl) ketone; bis-(chloromethyl) formal; 1,2-dichloro- or 1,2-dibromoethylene; phosgene, oxalyl-adipyl- or phthalyl-chlorides. Reaction may take place as a bulk polymerization. Solvents, e.g. aromatic or aliphatic hydrocarbons or ethers may be employed. |
| priorityDate | 1973-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.