Patent EP0427535A2 successfully refreshed from Google Patents.
EP0427535A2
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EP
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Polyamide-polyester fluorescent pigments
Assignee: Day Glo Color Corp
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Filing: 1990-11-07
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Granted: —
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Expires: 2010-11-07
Abstract
Abstract The invention provides improved fluorescent pigment compositions comprising a fluorescent dye combined in a polyamide-polyester thermoplastic resin. The resins are prepared from aromatic polycarboxlic acids and lower aliphatic amino alcohols.
Inventors
- 👤 Steven G. Streitel
- 👤 George F. Rueter
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 22:07
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/02; C08; C08G; C08G69/00; C08G69/44; C08K; C08K5/00; C08K5/0008; C08K5/0041
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
51 words
A fluorescent pigment composition comprising at least one fluorescent dye and a polyamide-polyester thermoplastic resin which is a condensation product of isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid or trimesic acid (or a mixture thereof) with at least one aliphatic primary amino alcohol which contains from 2 to 4 carbon atoms.
Claim 2
Dependent Claim
51 words
A fluorescent pigment composition comprising at least one fluorescent dye and a polyamide-polyester thermoplastic resin which is a condensation product of isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid or trimesic acid (or a mixture thereof) with at least one aliphatic primary amino alcohol which contains from 2 to 4 carbon atoms.
Claim 3
Dependent Claim
22 words
A pigment composition according to claim 1 wherein the condensation product is additionally of 0.1 to 1 mol per cent polyhydric alcohol.
Claim 4
Dependent Claim
14 words
A pigment composition according to claim 2 wherein the polyhydric alcohol is cyclohexane dimethanol.
Claim 5
Dependent Claim
23 words
A pigment composition according to claim 1, claim 2 or claim 3 wherein the resin contains at least one free carboxylic acid group.
Claim 6
Dependent Claim
19 words
A pigment composition according to any one of the preceding claims wherein the aliphatic amino alcohol is isopropanol amine.
Claim 7
Dependent Claim
20 words
A pigment composition according to any one of claims 1 to 4 wherein the aliphatic amino alcohol is ethanol amine.
Claim 8
Dependent Claim
30 words
A pigment composition according to any one of the preceding claims wherein the resin has a weight average molecular weight in the range of from about 500 to about 10,000.
Claim 9
Dependent Claim
32 words
A pigment composition according to any one of the preceding claims which includes from about 0.1 to about 15% by weight of fluorescent dye based on the total weight of the pigment.
Claim 10
Dependent Claim
26 words
A pigment composition according to any one of the preceding claims which is particulate and ranges in particle size from about .1 to about 200 microns.
Claim 11
Independent Claim
55 words
A method of making a pigment composition which includes condensing isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid or trimesic acid, or a mixture thereof, with at least one C₂-C₄ aliphatic primary amino alcohol and optionally 0.1 to 1 mol per cent of a polyhydric alcohol and admixing at least one fluorescent dye with the product.
Claim 12
Independent Claim
55 words
A method of making a pigment composition which includes condensing isophthalic acid, terephthalic acid, 2,6-naphthalene dicarboxylic acid or trimesic acid, or a mixture thereof, with at least one C₂-C₄ aliphatic primary amino alcohol and optionally 0.1 to 1 mol per cent of a polyhydric alcohol and admixing at least one fluorescent dye with the product.
Claim 13
Dependent Claim
29 words
A method according to claim 10 wherein in the condensation between 1.0 to 1.5 moles of COOH« functional groups are reacted per mole of NH₂ and/or OH functional groups.
References Cited (Backward Citations)
No citation records indexed.
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