http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2144051-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c6430c90005b67a61bc434a2115964d2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L51-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-5419 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D151-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L51-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D123-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D151-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-5419 |
| filingDate | 1994-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2000-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9569f54ec000f0d3c065ef21b1dd9981 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a23da7c3b7357f9c44d69203349cad40 |
| publicationDate | 2000-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2144051-C1 |
| titleOfInvention | Method of coating metal pipes, polyolefin composition, film, tape or strip |
| abstract | FIELD: polymer coatings. SUBSTANCE: coating is accomplished by wrapping pipes by polyolefin composition in the form of film, tape or strip, optionally placing hot-melt adhesive, and heating thus obtained layer of polyolefin material: (i) 10-60 wt parts of polypropylene with isotacticity index above 90 or crystalline copolymer of propylene with ethylene and/or C 4 -C 8 -alpha-olefin containing more than 85 wt % propylene, or their mixtures, intrinsic viscosity of this component ranging from 0.5 to 3 dl/g in tetrahydrofuran at 135 C; (ii) 10-40 wt parts of ethylene-containing polypropylene fraction insoluble in xylene at room temperature (intrinsic viscosity 2-8 dl/g in tetrahydrofuran at 135 C); (iii) 30-60 wt parts of amorphous fraction of ethylene-propylene copolymer containing 1 to 10 wt % diene (1,4-hexadiene, 1,5-hexadiene, ethylidenenorbornen) soluble in xylene at room temperature and 40 to 70 wt % ethylene (intrinsic viscosity 2-8 dl/g in tetrahydrofuran at 135 C); total content of ethylene polymerized in composition varying between 20 and 60 wt %. Polyolefin composition is cross-linked by grafting, to main polyolefin chain, 1-3 wt % of alkenyl-substituted alkoxysilanes of general formula SiR n (OR′) 4-n , wherein R is vinyl or allyl, R' C 1 -C 8 -alkyl, and n = 1,2 or 3, followed by interaction with water to achieve shrinkage of film less than 175% at 200 C and less than 15% at 23 C. EFFECT: increased mechanical and corrosive resistance and facilitated coating operation. 5 cl, 1 tbl, 5 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2681904-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2452794-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2637327-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2730523-C1 |
| priorityDate | 1993-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 83.