Composition for fixing wound items

Patent metadata

Field	Value
Publication number	US-10131811-B2
Application number	US-201414763542-A
Country	US
Kind code	B2
Filing date	Jan 24, 2014
Priority date	Jan 25, 2013
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

A composition for fixing wound items is provided. In one example, the composition comprises 5 to 97 wt % of at least one α,β-unsaturated polyester resin and/or α,β-unsaturated polyester imide resin comprising components of at least one α,β-ethylenically unsaturated mono-, di- and/or tricarboxylic acid, and/or its anhydride and/or ester, at least one polyol, at least one (meth)acrylic group containing component, possibly at least one mono-, di-, tri- and/or tetracarboxylic acid, which is not α,β-ethylenically unsaturated, and/or its anhydride and/or ester.

First claim

The invention claimed is:

1. A composition for fixing wound items, the composition comprising:
A) 5 to 97 wt % of α,β-unsaturated polyester imide resin comprising components of at least one α,β-ethylenically unsaturated mono-, di- and/or tricarboxylic acid, and/or its anhydride and/or ester, at least one polyol, at least one (meth)acrylic group containing component, possibly at least one mono-, di-, tri- and/or tetracarboxylic acid, which is not α,β-ethylenically unsaturated, and/or its anhydride and/or ester, and, at least one imide having 5-membered cyclic imide moieties, in a ratio of the components, wherein at least one of the unsaturated mono-, di- and/or tricarboxylic acid and/or its anhydride and/or ester and/or the polyol and/or the mono-, di-, tri- and/or tetracarboxylic acid, which is not α,β-ethylenically unsaturated, and/or its anhydride and/or ester and/or the imide having 5-membered cyclic imide moieties comprises linear and/or branched aliphatic and/or cycloaliphatic moieties with more than eight (8) carbon atoms of dodecenyl succinic anhydride, dimer fatty acids and/or dimer fatty alcohols;
B) 0 to 60 wt % of at least one unsaturated polyester resin and/or unsaturated polyester imide resin different from A);
C) 2 to 80 wt % of at least one monomeric and/or oligomeric unsaturated component with a vapour pressure of 0 to 1 mbar at 20° C., measured at 20° C.;
D) 0 to 40 wt % of at least one monomeric and/or oligomeric unsaturated component different from C) with a vapour pressure of 0 to 10 mbar at 20° C., measured at 20° C.;
E) 0.1 to 15 wt % of at least one additive; and
F) 0 to 30 wt % of monomers and/or polymers containing epoxy and/or glycidyl ether and/or ester moieties,
wherein the wt % being based on the total weight of the composition; and
wherein a wound item fixed with the composition after curing exhibits improved resistance to cracking as compared to a wound item fixed with a composition free of the at least one of the unsaturated mono-, di- and/or tricarboxylic acid and/or its anhydride and/or ester and/or the polyol and/or the mono-, di-, tri- and/or tetracarboxylic acid, which is not α,β-ethylenically unsaturated, and/or its anhydride and/or ester and/or the imide having 5-membered cyclic imide moieties comprising linear and/or branched aliphatic and/or cycloaliphatic moieties with more than eight (8) carbon atoms of dodecenyl succinic anhydride, dimer fatty acids and/or dimer fatty alcohols and after curing.

2. The composition according to claim 1 comprising 10 to 90 wt % of the at least one α,β-unsaturated polyester imide resin of component A).

3. The composition according to claim 1 , wherein component A) is obtained by reaction of
(a) at least one α,β-ethylenically unsaturated mono-, di- and/or tricarboxylic acid, and/or its anhydride and/or ester;
(b) at least one polyol;
(c) at least one imide having 5-membered cyclic imide moieties with the formula

in which

R1 is an aliphatic, cycloaliphatic or aromatic moiety in which the carbonyl groups in R1 are in a 1,2-position and that contains at least one further reactive carboxyl or hydroxyl group or a C═C
double bond or combinations thereof,

R2 is an aliphatic, aromatic or cycloaliphatic moiety with 2 to 20 carbon atoms that may also contain oxygen or nitrogen atoms,
R3 is an aliphatic, cycloaliphatic or aromatic moiety in which at least 2 of 4 carbonyl groups in R3 are in a 1,2-position, and
X is a hydroxyl or carboxy functionality,
(d) at least one (meth)acrylic group containing component, and
(e) possibly at least one mono-, di-, tri- and/or tetracarboxylic acid, which is not α,β-ethylenically unsaturated, and/or its anhydride and/or ester,
in a ratio of the components (a) to (e), wherein at least one of the components (a) to (c) or (e) comprises linear and/or branched aliphatic and/or cycloaliphatic moieties with more than eight (8) carbon atoms.

4. The composition according to claim, 3 wherein the ratio of the components (a) to (e) is chosen in such a way, that 100 g of component A) contain 0.03 to 0.5 mol of polymerizable α,β-ethylenically unsaturated groups of component (a) the amount of imidically bonded nitrogen in A) is at least 0.3 wt % being based on the weight of resin A).

5. The composition according to claim, 1 wherein the linear and/or branched aliphatic and/or cycloaliphatic moieties with more than 8 carbon atoms are dimer fatty acids and/or dimer fatty alcohols.

6. The composition according to claim, 1 wherein the at least one polyol comprises the linear and/or branched aliphatic and/or cycloaliphatic moieties with more than eight (8) carbon atoms.

7. The composition according to claim, 1 wherein the at least one mono-, di-, tri- and/or tetracarboxylic acid, which is not α,β-ethylenically unsaturated, and/or its anhydride and/or ester comprises the linear and/or branched aliphatic and/or cycloaliphatic moieties with more than eight (8) carbon atoms.

8. The composition according to claim, 1 wherein the α,β-ethylenically unsaturated mono-, di- and/or tricarboxylic acid and/or its anhydride and/or ester are dicarboxylic acids with 4 or 5 carbon atoms, and/or their anhydrides or esters.

9. The composition according to claim, 1 wherein the polyols are 1,3-propane diol, neopentyl glycol, THEIC, polyethylene glycol, hydroxyl functional polybutadiene, trimethylol propane, dimer fatty alcohols and/or castor oil.

10. The composition according to claim, 1 wherein the at least one monomeric and/or oligomeric unsaturated component C) has a vapour pressure of 0 to 0.5 mbar, measured at 20° C.

11. A process of preparation of a composition for fixing wound items comprising the step of:
preparing the composition, wherein the composition comprises:
A) 5 to 97 wt % of at least one α,β-unsaturated polyester imide resin comprising components of at least one α,β-ethylenically unsaturated mono-, di- and/or tricarboxylic acid, and/or its anhydride and/or ester, at least one polyol, at least one (meth)acrylic group containing component, possibly at least one mono-, di-, tri- and/or tetracarboxylic acid, which is not α,β-ethylenically unsaturated, and/or its anhydride and/or ester, and at least one imide having 5-membered cyclic imide moieties, in a ratio of the components, wherein at least one of the unsaturated mono-, di- and/or tricarboxylic acid and/or its anhydride and/or ester and/or the polyol and/or the mono-, di-, tri- and/or tetracarboxylic acid, which is not α,β-ethylenically unsaturated, and/or its anhydride and/or ester and/or the imide having 5-membered cyclic imide moieties comprises linear and/or branched aliphatic and/or cycloaliphatic moieties with more than eight (8) carbon atoms;
B) 0 to 60 wt % of at least one unsaturated polyester resin and/or unsaturated polyester imide resin different from A);
C) 2 to 80 wt % of at least one monomeric and/or oligomeric unsaturated component with a vapour pressure of 0 to 1 mbar at 20° C., measured at 20° C.;
D) 0 to 40 wt % of at least one monomeric and/or oligomeric unsaturated component different from C) with a vapour pressure of 0 to 10 mbar at 20° C., measured at 20° C.;
E) 0.1 to 15 wt % of at least one additive; and
F) 0 to 30 wt % of monomers and/or polymers containing epoxy and/or glycidyl ether and/or ester moieties,

wherein the wt % being based on the total weight of the composition, and where preparing the composition comprises mixing the components A) to F) in any sequence; and
wherein a wound item fixed with the composition after curin

Assignees

• Axalta Coating Systems Ip Co

Inventors

• Herm Michael
• Boehm Frank-Rainer
• De Jong Ulrike Gruene
• Hoffmann Peter
• Rohrbeck Lars-Goeran

Classifications

• C08F222/102

  of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate · CPC title

• C08G73/16

  Polyester-imides · CPC title

• H02K3/30

  Windings characterised by the insulating material · CPC title

• C08L67/06

  Unsaturated polyesters · CPC title

• C09D167/07 Primary

  having terminal carbon-to-carbon unsaturated bonds · CPC title