Acrylic polymer coagulates

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United States of America Patent

PATENT NO 12049533
APP PUB NO 20210054113A1
SERIAL NO

16965481

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides a multilayered acrylic polymer coagulate characterized in that the coagulate has a bulk density of 0.3 to 0.6 g/cm3 and a median diameter of 50 to 400 μm and contains particles having a particle diameter of 75 or less in a proportion of 50% or less, and the amount of alkali metal and alkaline earth metal contained in the coagulate satisfies the following formula (1):

description='In-line Formulae' end='lead'Σ(N/a)×(120−Tg)≤100  (1)description='In-line Formulae' end='tail'

wherein

    N represents the amount of alkali metal and alkaline earth metal contained in the coagulate (mmol/kg);Tg represents the glass transition temperature (° C.) of the acetone-soluble matter of the coagulate; anda represents the valency of the alkali metal and alkaline earth metal contained in the coagulate.

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Patent Owner(s)

Patent OwnerAddress
KURARAY CO LTDJAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akari, Masashi Tainai, JP 4 1
Niimura, Takuro Tainai, JP 18 14
Ozawa, Hiroshi Tainai, JP 82 780

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