Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Reexamination Certificate
2011-07-26
2011-07-26
Jackson, Monique R (Department: 1787)
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
C428S500000, C525S088000, C525S089000, C525S093000, C525S095000
Reexamination Certificate
active
07985484
ABSTRACT:
An object of the invention is to provide a block copolymer hydrogenation product suitable for a sheet and a heat shrinkable film which are excellent in solvent resistance, rigidity, elongation and transparency, which is excellent in a balance of physical properties such as solvent resistance, natural shrinkability, low-temperature shrinkability, rigidity, transparency and low-temperature elongation, and a composition thereof. The invention relates to a block copolymer hydrogenation product having a weight ratio of a vinyl aromatic hydrocarbon and a conjugated diene of 55/45 to 95/5, a number average molecular weight measured by gel permeation chromatography (GPC) of 30,000 to 500,000 and a hydrogenation rate of 30% or more, wherein the vinyl aromatic hydrocarbon incorporated into the hydrogenation product has a block rate of 60 to 98% by weight, wherein relative to the weight of the total vinyl aromatic hydrocarbon polymer blocks, the ratio of vinyl aromatic hydrocarbon polymer blocks having a molecular weight of 50,000 or less is 80% by weight or more and the ratio of vinyl aromatic hydrocarbon polymer blocks having a molecular weight of 15,000 or less is from 10 to 80% by weight, and wherein at least one peak temperature of function tan δ in a dynamic viscoelasticity measurement of the hydrogenation product is present within the range of exceeding −80° C. to lower than −10° C.
REFERENCES:
patent: 2004/0176514 (2004-09-01), Kubo et al.
patent: 2005/0222331 (2005-10-01), Hoshi et al.
patent: 1 403 317 (2004-03-01), None
patent: 1 498 438 (2005-01-01), None
patent: A-59-221348 (1984-12-01), None
patent: A-60-224520 (1985-11-01), None
patent: A-60-224522 (1985-11-01), None
patent: A-61-25819 (1986-02-01), None
patent: A-61-41544 (1986-02-01), None
patent: A-4-52129 (1992-02-01), None
patent: A-5-104630 (1993-04-01), None
patent: 05-245927 (1993-09-01), None
patent: 05-245928 (1993-09-01), None
patent: 06-184253 (1994-07-01), None
patent: A-6-220278 (1994-08-01), None
patent: A-7-216187 (1995-08-01), None
patent: A-2000-6329 (2000-01-01), None
patent: A-2000-185373 (2000-07-01), None
patent: A-2002-46231 (2002-02-01), None
patent: A-2002-201324 (2002-07-01), None
patent: 2003-321592 (2003-11-01), None
patent: 2005-60564 (2005-03-01), None
patent: 2005-126546 (2005-05-01), None
patent: WO 03/035705 (2003-05-01), None
patent: WO 03/066697 (2003-08-01), None
patent: WO 03/091303 (2003-11-01), None
patent: WO 03/091334 (2003-11-01), None
Hoshi Susumu
Yamaura Yukio
Asahi Kasei Chemicals Corporation
Finnegan Henderson Farbow Garrett & Dunner, L.L.P.
Jackson Monique R
LandOfFree
Hydrogenation product of block copolymer or sheet or film of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydrogenation product of block copolymer or sheet or film of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrogenation product of block copolymer or sheet or film of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2713395