Polypropylene resin composition and the use of the same

Details Polypropylene resin composition and the use of the same Polypropylene resin composition and the use of the same

1995-06-05

1997-01-21

Szekely, Peter A.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428213, 428910, B32B 2708, B32B 700

Patent

active

055958273

ABSTRACT:
Disclosed are a polypropylene resin composition comprising a crystalline polypropylene having a high stereoregularity and a terpene resin and a petroleum resin each having no polar group; a polypropylene stretched film formed from the polypropylene resin composition; and a polypropylene multi-layer stretched film having a base layer formed from the polypropylene resin composition and a surface layer formed from a polypropylene type polymer. The polypropylene stretched film and a polypropylene multi-layer stretched film have excellent water-vapor barrier properties and transparency, and a high Young's modulus.
Further, disclosed are a polypropylene resin composition comprising a crystalline polypropylene having a high stereoregularity and a hydrogenated petroleum resin; a PTP packaging polypropylene sheet formed from the polypropylene resin composition; and a PTP packaging polypropylene multi-layer sheet having a base layer formed from the polypropylene resin composition and a surface layer formed from a propylene type polymer, wherein the proportion of the thickness of the base layer to the total thickness of the sheet is more than 50%, and the total thickness of the sheet and the proportion of the thickness of the base layer satisfy the specific relationship. The PTP packaging polypropylene sheet and the PTP packaging polypropylene multi-layer sheet have excellent water-vapor barrier properties and transparency, and a high rigidity.

REFERENCES:
patent: 3278646 (1966-10-01), Lambert, Jr.
patent: 3361849 (1968-01-01), Cramer et al.
patent: 3663488 (1972-05-01), Keil
patent: 3865903 (1975-02-01), Nahmias et al.
patent: 4032493 (1977-06-01), Pascual
patent: 4522994 (1985-06-01), Chiba et al.
patent: 4551501 (1985-11-01), Shiga et al.
patent: 4603174 (1986-07-01), Okada et al.
patent: 4748207 (1988-05-01), Kakugo et al.
patent: 4869938 (1989-09-01), Usami et al.
patent: 4921749 (1990-05-01), Bossaert et al.
patent: 4927885 (1990-05-01), Hayashida et al.
patent: 4990477 (1991-02-01), Kioka et al.
patent: 4990479 (1991-02-01), Ishimaru et al.
patent: 5026778 (1991-06-01), Fujii et al.
patent: 5085943 (1992-02-01), Crighton et al.
patent: 5091237 (1992-02-01), Schloegl et al.
patent: 5115027 (1992-05-01), Ogawa et al.
patent: 5141994 (1992-08-01), Kakugo et al.
patent: 5159021 (1992-10-01), Kioka et al.
patent: 5212009 (1993-05-01), Peiffer et al.
patent: 5247031 (1993-09-01), Kioka et al.
patent: 5266636 (1993-11-01), Kioka et al.
patent: 5290635 (1994-03-01), Matsumura et al.
patent: 5292561 (1994-03-01), Peiffer et al.
patent: 5292563 (1994-03-01), Peiffer et al.
patent: 5429862 (1995-07-01), Schuhman et al.
patent: 5433983 (1995-07-01), Schuhman et al.
patent: 5438110 (1995-08-01), Ishimaru et al.
patent: 5451455 (1995-09-01), Peiffer et al.
Patent Abstract of Japan, 60-90 734 (A), 1985.
Patent Abstract of Japan, 61-209 207 (A), 1986.
Patent Abstract of Japan, 62-104 810 (A), 1987.
Patent Abstract of Japan, 62-104 811 (A), 1987.
Patent Abstract of Japan, 62-104 812 (A), 1987.
Patent Abstract of Japan, 62-104 813 (A), 1987.
Patent Abstract of Japan, 1-311 106 (A), 1989.
Patent Abstract of Japan, 1-318 011 (A), 1989.
Patent Abstract of Japan, 2-166 104 (A), 1990.
Database WPI, Derwent Publications, London, GB, AN 88-100 799, Mar. 1988.
Database WPI, Derwent Publications, London, GB, AN 80-59 674C, Jul. 1980.
Database WPI, Derwent Publications, London, GB, AN 85-095 052, Feb. 1985.
Database WPI, Derwent Publications, London, GB, AN 85-027 389, Dec. 1984.
Document No. 08351136 Name Shinozaki et al. Filing Date Jul. 22, 1993.

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