Fluorine-containing olefin, fluorine-containing polymer and ther

Details Fluorine-containing olefin, fluorine-containing polymer and ther Fluorine-containing olefin, fluorine-containing polymer and ther

1996-02-09

1997-09-23

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526240, 526246, 526247, 526242, 526249, 526255, 526248, C08F 1820, C08F 1624

Patent

active

056705930

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD

The present invention relates to a novel fluorine-containing polymer with functional group, which has excellent affinity with various heat-resisting thermoplastic resins and is capable of forming homogeneously dispersed conditions.
Further the present invention relates to a novel fluorine-containing olefin with functional group, which can give a functional group to the fluorine-containing polymer.
Further the present invention relates to a thermoplastic resin composition which has improved mechanical properties and chemical properties and comprises the above-mentioned fluorine-containing polymer with functional group and a thermoplastic resin having a melting point of crystal or glass transition temperature of not less than 150.degree. C.


BACKGROUND ART

Crystalline heat-resisting thermoplastic resins (these have a melting point of crystal of not less than 150.degree. C.) such as polyacetal, polyamide, aromatic polyester, poly(arylene sulfide), polyketones, poly(ether ketones), polyamideimide and poly(ether nitrile) are excellent in mechanical properties and moldability, and therefore are used for functional parts in the fields of automobiles, industrial machineries, office automation equipments, electrical and electronic equipments and the like. However there is a market demand for higher chemical resistance and sliding property and in addition, since these resins are generally brittle, enhancement in impact resistance is particularly desired. Also non-crystalline heat-resisting thermoplastic resins (these have a glass transition temperature of not less than 150.degree. C.) such as polycarbonate, poly(phenylene ether), polyarylate, polysulfone, poly(ether sulfone) and poly(ether imide) are widely employed for uses where their transparency, dimensional stability, impact resistance and the like are utilized, but generally have problems of chemical resistance, solvent resistance and moldability.
From another aspect, fluorine-containing resins such as polytetrafluoroethylene (PTFE), tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer (PFA), tetrafluoroethylene/hexafluoropropylene copolymer (FEP), poly(vinylidene fluoride) (PVDF) and ethylene/tetrafluoroethylene copolymer (ETFE) are excellent in thermal resistance, chemical resistance, solvent resistance, weather resistance, sliding property, flexibility, electrical properties and the like, and are widely used in the fields of automobiles, industrial machineries, office automation equipments, electrical and electronic equipments and the like. However as compared with the crystalline heat-resisting thermoplastic resins, in many cases, the fluorine-containing resins are inferior in mechanical properties and physical heat resistance as shown by a deflection temperature under load, and also are inferior in dimensional stability as compared with non-crystalline heat-resisting thermoplastic resins, and thus their application is limited.
In order to eliminate the drawbacks of the above-mentioned non-fluorine type heat-resisting thermoplastic resins, attempts for preparing novel materials have been aggressively made by combining with a fluorine-containing polymer (resinous and elastomeric ones are included) or, contrarily, by modifying the resinous fluorine-containing polymer with a non-crystalline heat-resisting thermoplastic resin.
First, as an example of simple melt-blending by means of a kneader, for instance, JP-A-202344/1982 discloses that a commercially available fluorine-containing elastomer is added to poly(arylene sulfide) for the purpose to improve impact resistance, crack resistance and strength against thermal shock without impairing the characteristics of poly(arylene sulfide) such as thermal resistance and chemical resistance. Also JP-A-165647/1989 and JP-A-110156/1990 disclose that a polymer forming an anisotropic melt, i.e. a liquid crystal polymer (aromatic polyester and the like) is added for the purpose to decrease a coefficient of linear expansion and further to improve mechanical properties and moldability without impair

REFERENCES:
patent: 4544720 (1985-10-01), Ohmori et al.
patent: 4581412 (1986-04-01), Ohmori et al.
patent: 4581413 (1986-04-01), Kim
International Search Report for International Application No. PCT/JP95/01103.
Supplementary European Search Report for Appln. No. EP 95 92 0259, dated Apr. 11, 1996 Databases "Registry", Chemical Abstracts (Host: STN); R.N.: 70641-93-9 and abs.
91: 29 666, Colombus, OH, USA; & JP-A-54 023 099 (Asahi Glass Co., Ltd.) 21 Feb. 1979.

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