http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0890612-B9
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_baa282e2377342b93eea91ebc675086a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-035 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2205-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-142 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L51-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L53-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L23-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L53-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L51-06 |
| filingDate | 1998-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2005-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c671f43fe5e7a1cf3371881a3f00175 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d104d786278924099e9c689bfe933c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af082d41e021984bd991c862f1a59722 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3aaf3e2a7dd3cf87c73998198d1d2421 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_386c8df0c9fb7fa7487afc1410144811 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0b0d02b920d96ae98115b1e6bb2bcef http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bfef849e04bda8b6f52c5437add3804 |
| publicationDate | 2005-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0890612-B9 |
| titleOfInvention | Polyolefin molded parts of improved stiffness and heat resistance |
| abstract | Blow-moulded or injection-moulded polyolefin mouldings with improved heat distortion temperature and stiffness comprise: (a) 60-99.9, preferably 75-98 wt.% unmodified polypropylene polymer (I) and (b) 40-0.1, preferably 25-2 wt.% modified propylene polymer (B). (I) consists of (a1) usual propylene polymers, preferably homopolymers produced using Ziegler-Natta or metallocene catalyst, especially with a weight/number average molecular weight ratio Mw/Mn of 2-4.5, and/or random, block and/or random block copolymers of 80.0-99.9 wt.% propylene with ethylene and/or 4-18 carbon (C) alpha -olefins with a melt index (MI; g/10 min at 230 degrees C/2.16 kg) = 0.1-300, preferably 1-100,; (a2) a polyolefin mixture, with Mw/Mn = 2-6 and MI = 1-40, of (a2.1) 60-98 wt.% crystalline copolymer of 85-99.5 wt.% propylene and 15-0.5 wt.% ethylene and/or alpha -olefin of the formula CH2=CHR (R = linear or branched 2-8 alkyl); (a2.2) 2-40 wt.% elastic copolymer of 20-70 wt.% ethylene and 80-30 wt.% propylene and/or CH2=CHR; (a3) amorphous (co)polypropylene containing 0-20 wt.% CH2=CHR, with < 10 wt.% crystalline fraction with a melt enthalpy < 40 J/g and MI = 0.1-100; (a4) non-isotactic homopolypropylene with a melting point of 145-165 degrees C, heat of crystallisation of 4-10 cal/g and 35-55 wt.% soluble fraction in diethyl ether. (I) contains 0.01-2.5 wt.% stabiliser, 0.01-5 wt.% processing aid and optionally 0.1-1 wt.% antistatic, 0.2-3 wt.% pigment, 0.05-1 wt.% nucleating agent, 2-20 wt.% flame retardant as ancillaries and/or 3-40 wt.% (in)organic filler(s) and/or reinforcement(s) with respect to (I). The novel features are that (i) (II) is a modified homo- and/or co-polymer with MI = 0.05-40, preferably 0.25-15 and the ratio of the intrinsic viscosity of (II) to that of the unmodified polymer of the same Mw on which it is based is 0.20-0.95; and (ii) (II) is produced by (b1) modifying homopolypropylene and/or copolymers of propylene and ethylene and/or 4-18 C alpha -olefins with polyfunctional ethylenically unsaturated monomers and/or with ionising radiation or thermal free radical initiators; (b2) reacting functionalised polypropylene, preferably containing acid and/or acid anhydride groups, with polyfunctional compounds of opposite reactivity, preferably 2-16 C diamines ad/or 2-16 C diols; and/or (b3) hydrolytic condensation of polypropylene containing hydrolysable silane groups. Also claimed is a method of making the mouldings. |
| priorityDate | 1997-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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