Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2007-02-06
2007-02-06
Niland, Patrick D. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S272000, C528S291000, C528S347000, C528S354000, C528S403000
Reexamination Certificate
active
10460984
ABSTRACT:
An inventive blue colorant comprising a chromophore having at least one hydroxy group-terminated polyester chain attached, through a suitable alkylamino linking group (or groups), to the 1-position, the 4-position, or both, of an anthraquinone backbone and having at least one hindering group in a secondary position in relation to said amino linking group is provided. Such colorants exhibit excellent amine/base stability and thermal stability, effective colorations, excellent low extraction rates, high lightfastness levels, particularly when incorporated within certain media and/or on the surface of certain polyurethane substrates, and, most importantly excellent stability in the presence of excess of diisocyanates. The polyester chain or chains can be conveniently tailored to increase the solubility or compatibility in different types of polyurethane resin precursors thereby permitting the introduction of such excellent coloring chromophores within diverse polyurethane media and/or or diverse polyurethane substrates as well as provides a liquid colorant which facilitates handling. Compositions and articles comprising such inventive colorants are provided as well as methods for producing such inventive colorants.
REFERENCES:
patent: 4137243 (1979-01-01), Farmer
patent: 4284729 (1981-08-01), Cross et al.
patent: 4846846 (1989-07-01), Rekers et al.
patent: 4933426 (1990-06-01), McClelland et al.
patent: 4999418 (1991-03-01), Krutak et al.
patent: 5032670 (1991-07-01), Parham et al.
patent: 6528564 (2003-03-01), Xia
patent: 0 333337 (1989-09-01), None
Odian, George, “Principles of Polymerization” Second Edition, 1981, pp. 20-25.
Lanning Robert M.
Milliken & Company
Moyer Terry T.
Niland Patrick D.
LandOfFree
High toluene diisocyanate-stable blue colorants does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High toluene diisocyanate-stable blue colorants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High toluene diisocyanate-stable blue colorants will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3845222