Polymer dispersions having improved water-vapor barrier...

Details Polymer dispersions having improved water-vapor barrier... Polymer dispersions having improved water-vapor barrier...

2004-11-30

2009-02-17

Egwim, Kelechi C (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S243000

Reexamination Certificate

active

07491777

ABSTRACT:
A decsription is given of an aqueous copolymer poly(vinyl ester) dispersion comprisingA) 100 parts by weight of a copolymer derived fromA1) from 34.9 to 95% by weight of vinyl esters of aliphatic, saturated carboxylic acids,A2) from 4.9 to 65% by weight of maleic esters and/or fumaric esters of monohydric aliphatic alcohols having a chain length of C1-C18and/or alpha-olefins having from 2 to 8 carbon atoms,A3) from 0.1 to 10% of at least one comonomer having at least one stabilizing nonionic or ionic group, and alsoA4) if appropriate, other comonomers,the sum of components A1, A2 and A3 and if appropriate A4 giving 100% by weight,B) from 0.1 to 4.5 parts by weight, based on the total amount of the monomers used, preferably from 0.5 to 3.5 parts by weight of at least one protecting colloid, preferably poly(vinyl alcohol),C) from 0.1 to 10 parts by weight, based on the total amount of the monomers used, preferably from 0.5 to 5.0 parts by weight, of a nonionic emulsifier, andD) if appropriate, further additives suitable for coating foods.The dispersion is produced by free-radical emulsion polymerization and is suitable for coating foods. The films formed from these dispersions are distinguished by a low water-vapor transmission rate.

REFERENCES:
patent: 2232595 (1941-02-01), Dittmar et al.
patent: 2699396 (1955-01-01), Francis
patent: 3298855 (1967-01-01), Helin et al.
patent: 4591887 (1986-05-01), Arbree et al.
patent: 5364674 (1994-11-01), Saal et al.
patent: 6558719 (2003-05-01), Blumenberg et al.
patent: 6624243 (2003-09-01), Stark et al.
patent: 7078455 (2006-07-01), Heldmann et al.
patent: 2002/0007009 (2002-01-01), Stark et al.
patent: 2004/0077782 (2004-04-01), Heldmann et al.
patent: 0419816 (1966-08-01), None
patent: 1066849 (1960-12-01), None
patent: 1122703 (1962-01-01), None
patent: 1142269 (1963-01-01), None
patent: 1150268 (1963-06-01), None
patent: 2258538 (1973-06-01), None
patent: 2222280 (1973-11-01), None
patent: 35 03 441 (1985-08-01), None
patent: 0266804 (1989-04-01), None
patent: 40 12 953 (1991-10-01), None
patent: 199 57 454 (2001-05-01), None
patent: 101 12 431 (2002-10-01), None
patent: 0167477 (1986-01-01), None
patent: 0986965 (2000-03-01), None
patent: 1 153 979 (2001-11-01), None
patent: 1153979 (2001-11-01), None
patent: 1358127 (1964-04-01), None
patent: 919375 (1963-02-01), None
patent: 1024607 (1966-03-01), None
patent: 1044610 (1966-10-01), None
patent: 2001/240115 (2001-09-01), None
patent: 2002/240862 (2002-08-01), None
patent: WO-02/074856 (2002-09-01), None
patent: WO 02074856 (2002-09-01), None
patent: WO-03/054041 (2003-07-01), None
Derwent Abstract of AN 1989:476745-CAPLUS (Kureha Chemical Industry Co., Ltd., Japan) [JP 01013949—date: Jan. 18, 1989 Appln. No. JP 1987-170734 date: Jul. 8, 1987].
Derwent Abstract of AN 1992:549858-CAPLUS (Snow Brand Milk Products Co., Japan) [JP 04166036 date: Jun. 11, 1992 Appln. No. JP 1990-287143 Date: Oct. 26, 1990].
Derwent Abstract of AN 1997:403040-CAPLUS (Kureha Chemical Industry Co., Ltd., Japan) [JP 09132221 date: May 20, 1997—Appln. No. JP 1995-315986 Nov. 9, 1995].
Derwent Abstract of AN 2001:650440-CAPLUS (Mitsubishi Shoji Plastic Corporation, Japan) [JP 2001/240115 Sep. 4, 2001—Appln. No. JP 2000-48389 Feb. 24 2000] US 2003/124229 Jul. 3, 2003—US 2002-182942 date: Aug. 20, 2002.
Derwent Abstract of AN 2002:649935-CAPLUS (Snow Brand Milk Products Co., Ltd., Japan) [JP 2002/240862 Aug. 28, 2002—Appln. No. JP 2001-39633 Feb. 16, 2001].

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