Paper sizing agent comprised of reaction product of maleic anhyd

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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526272, C08F22204, C08F 812

Patent

active

045145440

ABSTRACT:
A paper sizing agent is disclosed. The sizing agent is obtained by alkali saponification of a reaction product which is obtained by reacting a propylene oligomer with maleic anhydride under heating in the absence of a catalyst. The propylene oligomer contains substantially no oligomers having 10 or less carbon atoms. Further, the content of oligomers having 11 to 12 carbon atoms is 0 to 30% by volume, the content of oligomers having 13 to 15 carbon atoms is 20 to 95% by volume and the content of oligomers having 16 to 21 carbon atoms is 5 to 50% by volume. The paper sizing agent provides a homogeneous transparent sizing agent, which restrains the amount of the foaming and also has improved sizing effects.

REFERENCES:
patent: 2565147 (1951-08-01), Pfluger
patent: 3532672 (1970-10-01), Takahara
patent: 3580893 (1971-05-01), Heilman
patent: 4071581 (1978-01-01), Yokoyama
patent: 4152312 (1979-05-01), Sackmann et al.
patent: 4161571 (1979-07-01), Yasui et al.

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