http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4981827-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0d78cd2835221849f6a74e6349185819 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-58 |
| filingDate | 1988-12-27^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1991-01-01^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6414c4ddfd6c933480de60f0e4bcd8c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7fe291f45a256e86c17cc6d0eb7eb6a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4ef61b0363d3f656d16e60590c44d05 |
| publicationDate | 1991-01-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4981827-A |
| titleOfInvention | Catalysts |
| abstract | A catalyst for addition polymerisation comprising n (a) an (initiator) first component of formula (I): n n M(X.sub.m)(Y.sub.n)Zp (I) n n wherein n M is Si, Ge or Sn n m and p are each an integer and n is 0 or an integer such that (m+n+p)=4; n X is QR 1 R2 2 where Q is N, P, As or P(=T)G.D where T is O or S and G and D are each independently a bond, O or S and R 1 and R 2 are each independently optionally substituted hydrocarbyl or together are optionally substituted hydrocarbadiyl which are inert in the process conditions of the present invention, or, when Q is P(=T)G.D as hereinbefore defined, R 1 and R 2 are each independently M(Y n )Z p as hereinbefore defined. n Y is independently any group as defined for X, or any group selected from a group OA where A is optionally substituted hydrocarbyl inert in the process conditions of the present invention, or trialkylsilylalkyl; n Z is independently any group as defined for Y, or an organic polymer radical comprising further M(Y n )Z p moieties; or n p is 2 and Z 2 is a group Z 1 8 of the formula - OSiR 5 R 6 OSiR 7 R 8 O-where R 5 , R 6 , R 7 and R 8 are each independently selected from any of the values defined for R 1 or R 2 , or Z 1 2 is a moiety --EDE-- where E is a bond or O and B is a polymer diradical, or E is O and D is an inorganic solid on whose surface the two --O-- groups are located, which comprises further --OMX m Y n O moieties; n (b) and a (co-catalyst) second component salt comprising an anion selected from, azide, cyanide, cyanate, fluoride, bifluoride, nitrate and organic mono- and poly-phosphonates, -phosphinates -sulphonates, -sulphinates, -carboxylates, -siloxides and -oxides (including aliphatic and aromatic anions of these types); and n a cation which in use of the catalyst is inert under the polymerisation process conditions yet renders the co-catalyst available in the polymerising medium, initiator components for such catalysts, compositions comprising such components, and a polymerisation process, in particular the addition polymerisation of vinylic monomers, using the catalysts. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6335456-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004052690-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5157136-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9218510-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2002192133-A1 |
| priorityDate | 1987-12-24^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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