Sizing composition

Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing

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1061452, 1061454, 1062131, 1062142, 1062152, 1062153, 1062154, 524 25, 524 47, 524 52, C08L 304, C08L 9304, C09D10304, C09D19304

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active

059720948

ABSTRACT:
This invention relates to a sizing composition comprising a thermoplastic resin selected from the group consisting of thermoplastic rosins having an acid number less than 50, thermoplastic hydrocarbon resins, thermoplastic polyamides and thermoplastic amide waxes, its use in sizing paper and paper sized with the sizing agent. The invention also relates to a method of sizing paper comprising use of a composition comprising a thermoplastic rosin, wherein the sizing takes place substantially in the absence of alum, and paper so sized.

REFERENCES:
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patent: 2566529 (1951-09-01), Montgomerie
patent: 3582464 (1971-06-01), Aldrich
patent: 3906142 (1975-09-01), Dowthwaite et al.
patent: 3966654 (1976-06-01), Aldrich
patent: 4240935 (1980-12-01), Dumas
patent: 4263182 (1981-04-01), Aldrich
patent: 4323425 (1982-04-01), Dowthwaite et al.
patent: 4374673 (1983-02-01), Aldrich
patent: 4522686 (1985-06-01), Dumas
patent: 4842691 (1989-06-01), Nakajima et al.
patent: 4983257 (1991-01-01), Schultz et al.
patent: 5382282 (1995-01-01), Pennaz

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