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| Radiation sterilizable propylene polymer compositions and articles manufactured therefrom |
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| Polyolefin thermoplastic silicone elastomers employing radical cure |
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Waterborne traffic paints having improved fast dry characteristic and method of producing traffic markings therefrom
| Details |
Inventors: Schall, Donald Craig; Edwards, Steven Scott;
Assignee: Rohm and Haas Company (Philadelphia, PA)
Primary Examiner: Yoon; Tae
Assistant Examiner:
Attorney, Agent or Firm: Sun; Hsing-ning
The present invention is directed to traffic paint compositions, which dry faster than conventional waterborne traffic paints and to a method of producing traffic paint road markings made therefrom. The traffic paint composition of the present invention includes a blend of an anionically stabilized polymer binder, a polyfunctional amine polymer having an amine and an acid functionality therein and an amount of volatile base sufficient to raise the pH of the composition to a point where essentially all of the polyfunctional amine polymer is in a non-ionic state. The traffic paint composition of the present invention further provides improved storage stability. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A method for producing a light reflective traffic marking on a road surface comprising: applying on said road surface a layer of an aqueous traffic paint composition comprising a blend in an aqueous medium of an anionically stabilized polymer binder having a Tg greater than 0.
degree.
C.
, a polyfunctional amine polymer polymerized from a monomer mixture comprising at least one acid and at least one amine monomer, and an amount of volatile base sufficient to raise the pH of the composition to a point where essentially all of the polyfunctional amine polymer is in a non-ionic state; dropping glass beads on said layer to make said traffic marking reflective to light; and evaporating said aqueous evaporable medium from said layer to form said traffic marking on said road surface.
2.
The method of claim 1 further comprising contacting said layer with a coagulant.
3.
A traffic marking on a road surface prepared in accordance with the method of claim 1.
4.
The method of claim 1 wherein said polyfunctional amine polymer is polymerized from a monomer mixture comprising 2 to 20 percent of an acid monomer.
5.
The method of claim 1 wherein said acid monomer is selected from the group consisting of monoethylenically unsaturated carboxylic acid, half-ester of ethylenically unsaturated dicarboxylic acid, half-amide of ethylenically unsaturated dicarboxylic acid, monomethyl itaconate, monomethyl fumarate, monobutyl fumarate, acrylamido propane sulfonate, sodium vinyl sulfonate, 2 acrylamido-2-methylpropanesulfonic acid, 2-methacryloxyethyl phosphate, phosphoethyl(meth)acrylate, and various mixtures thereof.
6.
The method of claim 1 wherein said polyfunctional amine polymer is polymerized from a monomer mixture comprising 80 to 98 percent of an amine monomer.
7.
The method of claim 1 wherein said amine monomer is selected from the group consisting of alkylaminoalkyl ester of .
alpha.
, .
beta.
unsaturated carboxylic acids, alkylaminoalkyl amide of unsaturated acids, aminoalkyl vinyl ether or sulfide, vinyl pyridine, N-acryloxyalkyl-oxazolidine, N-acryloxyalkyltetrahydro-1,3-oxazine, ethylene imine, propylene imine and mixtures thereof
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Adhesives and Rubbers 
