Aqueous dispersions based on cellulose nitrates, a

专利名称：Aqueous dispersions based on cellulose

nitrates, a process for their production andtheir use as quick-hardening coatings

发明人：Erhard Luhmann,Lutz Hoppe,Klaus

Szablikowski

申请号：US06/943299申请日：19861217公开号：US04772329A公开日：19880920

摘要：Aqueous coating agent dispersions comprising

A. from 3 to 30% by weight of cellulose nitrate,

B. from 10 to 50% by weight of at least one liquid prepolymer, which is optionallyemulsifiable in water even in the absence of emulsifier, which contains from 0.01 to 1.3mols/100 g of prepolymer of polymerizable C--C double bonds,

C. from 0 to 25% by weight of at least one liquid prepolymer, which is not emulsifiablein water in the absence of emulsifier, which contains from 0.01 to 1.3 mols/100 g ofprepolymer of polymerizable C--C double bonds and has a maximum acid value of 25 anda maximum viscosity at 23° C. of 60 Pa.s,

D. from 0 to 20% by weight of an organic solvent with an evaporation number of < 20,

E. from 0 to 15% by weight of a plasticizer,

F. from 0 to 5% by weight of a conventional emulsifier,

G. from 0 to 10% by weight of further conventional additives, and

H. water as the remainder

the total of A-H always being 100% by weight and if B=C, the quantity of emulsifierhas to be > 0.

申请人：BAYER AKTIENGESELLSCHAFT

代理机构：Sprung Horn Kramer & Woods

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