Paper felts or mats

Details Paper felts or mats Paper felts or mats

1991-09-05

1992-05-19

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

428511, 523407, 523467, 524445, 524451, 524460, 525902, C08G 8300, C08K 320, C08L 6300, C08L 908

Patent

active

051149915

ABSTRACT:
A paper felt or mat is made from an aqueous slurry or dispersion of kraft wood pulp, a number of compounding ingredients such as finely divided inorganic pigments and fillers, a binder, an anionic latex of a copolymer wherein the core of the copolymer comprises a copolymer of a vinyl aryl monomer and a dicarboxylic acid monomer such as fumaric acid and/or itaconic acid and wherein the shell comprises a copolymer or a vinyl aryl monomer, a conjugated diene monomer, a glycidyl monomer such as glycidyl acrylate and/or glycidyl methacrylate and optionally a monocarboxylic acid monomer such as acrylic acid and/or methacrylic acid. The mat of this invention exhibits improved properties over mats made from other latex binders.

REFERENCES:
patent: 4265977 (1981-05-01), Kawamura et al.
patent: 4413068 (1983-11-01), Sinclair et al.
patent: 4474860 (1984-10-01), Van Gilder et al.
patent: 4477535 (1984-10-01), Sinclair et al.
patent: 4567099 (1986-01-01), Van Gilder et al.
patent: 4613633 (1986-09-01), Sekiya et al.
patent: 4863979 (1989-09-01), Beyersdorf et al.

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