Stretch material

Details Stretch material Stretch material

2006-09-12

2006-09-12

Seidleck, James J. (Department: 1711)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S089000, C525S098000, C525S338000

Reexamination Certificate

active

07105599

ABSTRACT:
A stretch matenal consists essentially of a thermoplastic polymer matstial that meets the following couditions:(i) the thermoplastic polymer material contains:(a) 100 parts by weight of a hydrogenated block copolymer having a number average molecular weight of 50,000 to 140,000 and comprising am least two polymer blocks (A) composed mainly of a vinyl aromatic compound and at least one hydrogenated polymer block (B) composed mainly of a conjugated diene compound;(b) 0 to 120 parts by weight of a non-aromatic rubber softening agent;(c) 0 to 80 parts by weight of polyethylene that has an MFR of 15 g/10 min or above when measured at 190° C. wider a load of 2.16 kg; and(d) 0 to 40 parts by weight of polystyrene that has an MFR of 5 g/10 min or above when measured at 200° C. under a load of 5.00 kg.

REFERENCES:
patent: 4719261 (1988-01-01), Bunnelle et al.
patent: 8-59903 (1996-03-01), None
patent: 10-60220 (1998-03-01), None

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