Title:
NOVEL THERMOPLASTIC FLUOROELASTOMER HAVING SUPERIOR MECHANICAL AND ELASTIC PROPERTIES AND ITS PREPARATION
Document Type and Number:
Japanese Patent JP3471456
Kind Code:
B2
Abstract:
PURPOSE: To obtain a thermoplastic fluoroelastomer having a very low compression set and an excellent tensile strength by introducing a small amt. of a bis-olefin into elastomeric and plastomeric fluoropolymer segments.
CONSTITUTION: This fluoroelastomer has a block structure comprising (A) fluoropolymer segments having elastomeric properties and (B) fluoropolymer segments having plastomeric properties, segments A or B contg. bis-olefin monomer units of the formula [wherein R1 to R6 are each H or a 1-5C alkyl; and Z is a 1-18C (cyclo)alkylene, pref. a (per)fluoropolyoxyalkylene]. The content of the bis-olefin monomer units in segments A or B is 0.01-1 mol.%, pref. 0.03-0.5 mol.%, based on total monomer units. Segment A is formed from tetrafluoroethylene, a perfluoroalkyl vinyl ether, or the like; and segment B, from a perfluoroalkyl vinyl ether, vinylidene fluoride, or the like.
Inventors:
Vinsenzo Aresera
Giulio Burinachi
Margherita Albano
Vito Tortelli
Giulio Burinachi
Margherita Albano
Vito Tortelli
Application Number:
JP32905794A
Publication Date:
December 02, 2003
Filing Date:
December 28, 1994
Export Citation:
Assignee:
Ausimont S.P.A.
International Classes:
C08F14/18; C08F16/32; C08F216/12; C08F259/00; C08F214/18; C08F259/08; C08F283/06; C08F291/04; C08F293/00; C08L53/00; (IPC1-7): C08F291/04; C08F214/18; C08F216/12; C08F259/08
Domestic Patent References:
| JP63260914A | ||||
| JP3126709A | ||||
| JP5933313A | ||||
| JP41253A | ||||
| JP3122106A | ||||
| JP6220143A |
Other References:
【文献】米国特許4472557(US,A)
【文献】英国特許904262(GB,B)
【文献】英国特許904262(GB,B)
Attorney, Agent or Firm:
Masatake Shiga (2 outside)
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