Heat-shrinkable tubing and process for producing the same

Details Heat-shrinkable tubing and process for producing the same Heat-shrinkable tubing and process for producing the same

1991-12-31

1994-03-29

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Shrinkable or shrunk

428 352, 428212, 428421, 428422, 174DIG8, B32B 702

Patent

active

052983005

ABSTRACT:
Heat-shrinkable two-layer tubing comprising (a) an outer layer comprising a crosslinked resin composition comprising a fluorine-containing resin containing a vinylidene fluoride unit as a base polymer and a polyfunctional monomer containing at least two unsaturated double bonds in the molecule thereof, and (b) an inner layer having provided on the inner wall of the outer layer comprising a fluorine-containing resin composition. The tubing is excellent in heat resistance and chemical resistance and exerts an excellent sealing effect on heating.

REFERENCES:
patent: 3861972 (1975-01-01), Glover et al.
patent: 4634615 (1987-01-01), Versteegh et al.
patent: 4693940 (1987-09-01), Vogdes et al.
patent: 5059480 (1991-10-01), Guerra et al.
patent: 5143761 (1992-09-01), Chiotis et al.
World Patents Index (latest), Accession No. 90-110327, Week 15, Derwent Publications Ltd., London, Great Britain & JP-A-2059325 (Sumitomo), Feb. 28, 1990 Abstract.
World Patents Index (latest), Accession No. 86-073886, Week 11, Derwent Publications Ltd., London, Great Britain & JP-A-61025822 (Sumitomo), Feb. 4, 1986 Abstract.
World Patents Index (latest), Accession No. 90-285967, Week 38, Derwent Publications Ltd., London, Great Britain & JP-A-2200434 (Sumitomo), Aug. 8, 1990 Abstract.

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