Water repellent and oil resistant composition
AssigneeAsahi Glass Company, Limited
InventorsShoji Furuta, Ryuji Seki, Hiroshi Funaki
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Abstract
A water repellent and oil resistant composition capable of imparting excellent water repellency and oil resistance to paper even under a condition of drying at a low temperature for a short time, is provided. The composition comprising a fluorocopolymer (A) obtained by polymerizing a polyfluoroalkyl group-containing (meth)acrylate, vinylidene chloride and a compound of the formula [CH2═C(R)COO—CH2—CH(OH)CH2N+(CH3)3·X− (R: a hydrogen atom or a methyl group, and X−: a counter ion)] or the like by means of a lipophilic polymerization initiator (E) having a solubility of less than 3 g in 100 g of water, a non-fluorine surfactant (B), a medium (C) and a water-soluble polymer (D) (a polyacrylamide, a polyvinyl alcohol or starch).
Claims10
A water repellent and oil resistant composition comprising the following fluorocopolymer (A), a non-fluorine surfactant (B), a medium (C) and the following water-soluble polymer (D), as the essential components:
- Water-soluble polymer (D):
- a water-soluble polymer selected from a polyacrylamide, a polyvinyl alcohol and starch;
- Fluorocoplymer (A):
- a copolymer comprising polymerized units of a (meth)acrylate having a polyfluoroalkyl group, polymerized units of a vinylidene halide and polymerized units of a compound represented by the following formula (1):
- CH2═C(R)CO—Y—(CH2)n—CH(R4)—CH2N+(R1)(R2)(R3)·X− (1)
- provided that symbols in the formula (1) have the following meanings:
- R:
- a hydrogen atom or a methyl group;
- Y:
- an oxygen atom or a bivalent organic group;
- R1, R2:
- each independently is a hydrogen atom or an alkyl group, or they together form an alkylene group, or together form an alkylene group having an etheric oxygen atom between carbon—carbon;
- R3:
- a hydrogen atom or an alkyl group;
- R4:
- a hydrogen atom or a hydroxyl group;
- n:
- 0, 1, 2, 3 or 4;
- and
- X−:
- a counter ion.
Dependencies are inferred from the claim text.