Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Reexamination Certificate
2006-03-28
2006-03-28
Niland, Patrick D. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
C528S074000
Reexamination Certificate
active
07019101
ABSTRACT:
An inventive blue colorant comprising a chromophore having at least one polyester chain attached, through a suitable linking group (or groups), to the 1-position, the 4-position, or both, of an anthraquinone backbone 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
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: 0 333 337 (1989-02-01), None
Lanning Robert M.
Milliken & Company
Moyer Terry T.
Niland Patrick D.
LandOfFree
Polyurethane articles comprising novel high toluene... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polyurethane articles comprising novel high toluene..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyurethane articles comprising novel high toluene... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3530952