Back to results
US 7,819,968 B2Granted
Stir-in pigment preparations for coloration of energy curable systems
AssigneeSun Chemical Corporation
InventorsRussell J. Schwartz, Darren Mark Ortalano, Darleen Rae Wright
Life of this patent
Estimating the term…
Abstract
A dry colorant composition is disclosed and contains (a) pigment; (b) inert carrier; and (c) rheological additive having the structure: P—(U—Y)s wherein P is the residue of an organic colorant, Y is a polyalkylene oxide or polyalkylene moiety, U is a linking moiety covalently bonding Y to P, and s is an integer from 1 to 3.
Claims21
A dry colorant composition which is a combination of:
- (a) pigment;
- (b) inert carrier;
- and
- (c) rheological additive having the structure:
- P—(U—Y)s
- wherein P is the residue of an organic colorant, Y is a polyalkylene oxide or polyalkylene moiety, U is a linking moiety covalently bonding Y to P, and s is an integer from 1 to 3, and
- wherein said combination is a dry solid composition.
4 more elements
A dry colorant composition comprising a combination of:
- (a) pigment;
- (b) inert carrier which comprises sorbitan monostearate or tristearate;
- and
- (c) rheological additive having the structure:
- P—(U—Y)s
- wherein P is the residue of an organic colorant, Y is a polyalkylene oxide or polyalkylene moiety, U is a linking moiety covalently bonding Y to P, and s is an integer from 1 to 3, and
- wherein said combination is a dry solid composition.
4 more elements
A method for preparing a dry colorant composition comprising combining:
- (a) pigment;
- (b) an inert carrier;
- and
- (c) a rheological additive having the structure:
- P—(U—Y)s
- wherein P is the residue of an organic colorant, Y is a polyalkylene oxide or polyalkylene moiety, U is a linking moiety covalently bonding Y to P, and s is an integer from 1 to 3 wherein the composition is a dry solid composition.
3 more elements
Dependencies are inferred from the claim text.