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US 2003/0077451 A1Published application
Articles containing thioxanthone dyes
Assignee3M Innovative Properties Company
InventorsLee A. Pavelka, David B. Olson, R. Ellen Harelstad, David M. Burns
Life of this patent
Estimating the term…
Abstract
Described are articles, laminates, sheets, coatings, retroreflective articles, pigments containing thioxanthone compounds that are fluorescent colorants.
Claims59
An article comprising a polymer matrix and a compound of the formula
- 4
- wherein R1 is a straight chain alkyl group having from 5 to 22 carbon atoms or a branched chain alkyl group having from 3 to 22 carbon atoms;
- R2, R3 and R4 are each, independently, hydrogen or alkyl having from 1 to 4 carbon atoms.
A laminate comprising:
- (a) a sheet comprising:
- (i) a polymer matrix;
- (ii) a compound of the formula
- 5
- wherein R1 is a straight chain alkyl group having from 5 to 22 carbon atoms or a branched chain alkyl group having from 3 to 22 carbon atoms;
- R2, R3 and R4 are each, independently, hydrogen or alkyl having from 1 to 4 carbon atoms;
- and
- (b) a substrate wherein the sheet is disposed on the substrate to form a laminate.
5 more elements
A pigment comprising in particle form:
- (a) a compound of the formula
- 6
- wherein R1 is a straight chain alkyl group having from 5 to 22 carbon atoms or branched chain alkyl group having from 3 to 22 carbon atoms;
- R2, R3 and R4 are each, independently, hydrogen or alkyl having from 1 to 4 carbon atoms;
- and
- (b) a polymer matrix comprising at least one of a polycarbonate and a polyester, wherein the compound is incorporated into the polymer matrix.
3 more elements
An article comprising:
- (a) a binder having a first major viewing surface;
- and
- (b) a pigment comprising, in particle form,
- (i) a compound of the formula
- 7
- wherein R1 is a straight or branched chain alkyl group having from 1 to 22 carbon atoms;
- R2, R3 and R4 are each, independently, hydrogen or alkyl having from 1 to 4 carbon atoms;
- and
- (ii) a polymer matrix comprising at least one of a polycarbonate and a polyester, wherein the compound is incorporated into the polymer matrix, and wherein at least some of the pigment particles are disposed on or in the binder so as to be visible on the first major viewing surface of the binder.
6 more elements
A coating composition comprising:
- (a) a compound of the formula
- 8
- wherein R1 is a straight or branched chain alkyl group having from 1 to 22 carbon atoms;
- R2, R3 and R4 are each, independently, hydrogen or alkyl having from 1 to 4 carbon atoms;
- (b) a film-forming resin;
- and
- (c) a solvent.
4 more elements
An article comprising at least one color layer selected from
- a) a mixture of a polymer matrix and a compound of the formula
- 9
- wherein R1 is a straight chain alkyl group having from 5 to 22 carbon atoms or a branched chain alkyl group having from 3 to 22 carbon atoms;
- R2, R3 and R4 are each, independently, hydrogen or alkyl having from 1 to 4 carbon atoms and wherein said mixture is in the form of a sheet or pigment particle;
- and
- b) a coating composition comprising:
- (a) a compound of the formula
- 10
- wherein R1 is a straight or branched chain alkyl group having from 1 to 22 carbon atoms;
- R2, R3 and R4 are each, independently, hydrogen or alkyl having from 1 to 4 carbon atoms and a film-forming resin.
7 more elements
Dependencies are inferred from the claim text.