http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0757065-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fa206d5abb07311badcc825b0af7ebbd |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0057 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-0065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2200-062 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2200-0622 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F210-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F218-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0042 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B26-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J131-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F263-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F210-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F10-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J123-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B26-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F218-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F218-08 |
| filingDate | 1996-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bcb6a51e588d5be48ec222cb67c52432 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c11d0d780e82902d10bb531f57633d79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59f0775d43bb9d6ea68087ae1ee9c124 |
| publicationDate | 2001-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0757065-B1 |
| titleOfInvention | Heterogeneous vinylacetate/ethylene dispersion |
| abstract | The protective colloid-stabilised vinyl acetate-ethylene polymer in dispersion or redispersible powder form (I) has a Tg of -40 to 10 degrees C and an ethylene content of at least 30 wt.% based on total monomer content. The copolymer particles (I) have a heterogeneous structure with a first copolymer phase (A) contg. vinyl acetate (VAC) and more than 40 wt.% ethylene (E) and a last copolymer phase (B) contg. VAC and 5-40 wt.% E (based on total monomer content of each phase). Phases (A) and (B) have Tg values of-30 to -10 degrees C and 10-40 degrees C, respectively, when separately polymerised, and phase (A) is partly crystalline. Copolymer (I) contains 30-70 wt.% VAC and 30-70 wt.% E, and the protective colloid is polyvinyl alcohol (PVAL) in amts. of 2-20 wt.% w.r.t. copolymer. (I) is obtd. by copolymerisation of VAC with E and opt. other comonomers such as vinyl esters of 3-18C aliphatic carboxylic acids, (meth)acrylate esters and maleate diesters of 1-18C aliphatic alcohols, monomers with sulphonate gps., alpha , beta -unsatd. acids, (meth)acrylate esters with epoxy or OH gps., monomers with N-methylol gps., etc.. The process comprises: (a) radical polymerisation of part of the monomers under ethylene pressure at 55-150 bar in the presence of a protective colloid; (b) opt. polymerisation of a further part of the monomers; (c) radical polymerisation of the rest of the monomers under ethylene at 1-55 bar; and (d) optional spray-drying. Stages (a) and (c) are carried out at 65-95 bar and 1-40 bar respectively (ethylene pressure). Up to 50 wt.% of the monomers (except for ethylene) is placed in the reactor at the start and the rest is added during polymerisation. |
| priorityDate | 1995-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 156.