Water and oil repellent composition

• US 20050267241A1
• Filed: 04/15/2005
• Published: 12/01/2005
• Est. Priority Date: 10/15/2002
• Status: Abandoned Application

• Current Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Original Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Inventors: Sugimoto, Shuichiro, Shimada, Toyomichi, Shimada, Minako, Seki, Ryuji, Maekawa, Takashige
• Application Number:
  US11/106,641
• Publication Number:
  US 20050267241A1
• Time in Patent Office: Days
• US Class Current: 524/366
• CPC Class Codes: C08F 218/08 Vinyl acetate
• CPC Class Codes: C08F 220/1804 C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
• CPC Class Codes: C08F 220/1808 C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
• CPC Class Codes: C08F 220/1818 C13or longer chain (meth)acrylate, e.g. stearyl (meth)acrylate
• CPC Class Codes: C08F 220/22 Esters containing halogen
• CPC Class Codes: C08F 220/24 containing perhaloalkyl radicals
• CPC Class Codes: C08F 220/346 and further oxygen
• CPC Class Codes: C08F 220/36 containing oxygen in addition to the carboxy oxygen , e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate
• CPC Class Codes: C08F 230/085 the monomer being a polymerisable silane, e.g. (meth)acryloyloxy trialkoxy silanes or vinyl trialkoxysilanes
• CPC Class Codes: C09K 3/18 for application to surfaces to minimize adherence of ice, mist or water thereto rendering particulate materials free flowing, in general, e.g. making them hydrophobic B01J2/30; Thawing or antifreeze materials for application to surfaces used in liquids for heat-transfer, heat-exchange or heat-storage or for the production of heat or cold other than by combustion, e.g. radiator liquids, C09K5/00
• CPC Class Codes: D06M 15/256 containing fluorine
• CPC Class Codes: D06M 15/263 of unsaturated carboxylic acids; Salts or esters thereof
• CPC Class Codes: D06M 2200/00 Functionality of the treatment composition and/or properties imparted to the textile material
• CPC Class Codes: D06M 2200/11 Oleophobic properties
• CPC Class Codes: D06M 2200/12 Hydrophobic properties
• CPC Class Codes: D06M 2200/50 Modified hand or grip properties; Softening compositions

Abstract

A water and oil repellent composition having excellent durability, which can impart excellent water and oil repellency to an object, even in a process at low temperatures, and which enables water and oil repellent treatment providing a soft hand. A water and oil repellent composition which comprises, as an essential component, a copolymer containing polymerization units of the following monomer (a) and polymerization units of the following monomer (b):

• • monomer (a): an R^f group-containing monomer which forms a photopolymer having no melting point or a melting point of at most 55° C. attributable to fine crystals derived from the R^f groups and having a glass transition point of at least 20° C.
  • monomer (b): a monomer having no R^f group and having a cross-linkable functional group.

Claims

1. A water and oil repellent composition, which comprises, as an essential component, a copolymer containing at least 80 mass % of polymerization units of the following monomer (a) and polymerization units of the following monomer (b):

Monomer (a);

a monomer having a polyfluoroalkyl group, which forms a homopolymer having no melting point or a melting point of at most 55°

C. attributable to fine crystals derived from the polyfluoroalkyl group, and having a glass transition point of at least 20°

C.,

Monomer (b);

a monomer having no polyfluoroalkyl group and having a cross-linkable functional group.

2. The water and oil repellent composition according to claim 1, wherein the copolymer is a copolymer containing polymerization units of the following monomer (c):

Monomer (c);

at least one monomer having no polyfluoroalkyl group other than the monomer (b), which contains at least 50 mass % of the following monomer (c1) or the following monomer (c2), based on the total amount of the monomer (c),

Monomer (c1);

a monomer which forms a homopolymer having a melting point of at least 30°

C. attributable to fine crystals,

Monomer (c2);

a monomer other than the monomer (c1), which forms a homopolymer having a glass transition point of from −

50°

C. to 40°

C.

4. The water and oil repellent composition according to claim 1, wherein the monomer (a) is a compound represented by (Z-Y)_nX provided that the symbols in the formula have the following meanings:

Z;

a perfluoroalkyl group having at most 6 carbon atoms,

Y;

a bivalent organic group or a single bond,

n;

1 or 2,

X;

a polymerizable unsaturated group, which is —

CR═

CH₂, —

COOCR═

CH₂, —

OCOCR═

CH₂, —

OCH₂-φ

-CR═

CH₂ or —

OCH═

CH₂ when n is 1, and is ═

CH(CH₂)_mCR═

CH₂, ═

CH(CH₂)_mCOOCR═

CH₂, ═

CH(CH₂)_mOCOCR═

CH₂ or —

OCOCH═

CHCOO—

when n is 2, wherein R is a hydrogen atom, a methyl group or a halogen atom, φ

is a phenylene group and m is an integer of from 0 to 4.

5. The water and oil repellent composition according to claim 1, wherein the water and oil repellent composition contains at least one medium selected from the group consisting of water, an alcohol, a glycol, a glycol ether and a glycol ester.

3. A water and oil repellent composition, which comprises, as an essential component, a copolymer containing at least 30 mass % and less than 80 mass % of polymerization units of the following monomer (a) and polymerization units of the following monomer (b), and further containing polymerization units of the following monomer (c):

Monomer (a);

a monomer having a polyfluoroalkyl group, which forms a homopolymer having no melting point or a melting point of at most 55°

C. attributable to fine crystals derived from the polyfluoroalkyl group, and further, having a glass transition point of least 20°

C.,

Monomer (b);

A monomer having no polyfluoroalkyl group and having a cross-linkable functional group;

Monomer (c);

at least one monomer having no polyfluoroalkyl group other than the monomer (b), which contains at least 50 mass % of the following monomer (c1) or the following monomer (c2), based on the total amount of the monomer (c),

Monomer (c1);

a monomer which forms a homopolymer having a melting point of at least 30°

C. attributable to fine crystals,

Monomer (c2);

a monomer other than the monomer (c1), which forms a homopolymer having a glass transition point of from −

50°

C. to 40°

C.