 Hydrophobically associating dispersants used in forming polymer dispersions |
| What is claimed is: 1. A process for polymerizing: (a) a first cationic monomer represented by the ... |
|
| Apparatus for recovering refrigerant with offset cam |
| A lightweight, i.e. about 30 lb, apparatus for recovering a compressible refrigeration fluid from a ... |
|
| Coolant/lubricant for machine operations |
| In accordance with the present invention, a non-toxic coolant lubricant is provided which is ... |
|
| Aqueous primer or coating |
| OF THE PREFERRED EMBODIMENTS Unless otherwise indicated, description of components in chemical ... |
|
| Polyetherimide-polycarbonate blends |
| We claim: 1. A composition consisting essentially of a blend of (a) a polycarbonate and (b) a ... |
|
| Process for the production of a polychloroprene latex which is stable to freezing and thawing |
| What we claim is: 1. In the process for producing a polychloroprene latex by radically polymerizing ... |
|
| Two-step process for conditioning sized coal and resulting product |
| OF THE INVENTION The coal found to be most desirable for use in the process of this invention is ... |
|
| Novel decapeptides, intermediates therefor, and compositions and methods employing said decapeptides |
| OF PREFERRED EMBODIMENTS The compounds of this invention are decapeptides represented by formula I ... |
|
| Poly(ethylene terephthalate) blends |
| OF THE INVENTION (a) Poly(ethylene terephthalates) The poly(ethylene terephthalate) used herein is ... |
|
| Chlorinated olefin polymer compositions stabilized with antimony trioxide |
| What is claimed is: 1. A composition of matter having an oxygen index value of at least about 20 as ... |
|
|
Soft and tough radiation-curable coatings for fiber optic application
| Details |
Inventors: Ansel, Robert E.;
Assignee: DeSoto, Inc. (Des Plaines, IL)
Primary Examiner: Marquis; Melvyn I.
Assistant Examiner: Sellers; Robert E. L.
Attorney, Agent or Firm: Dressler, Goldsmith, Shore, Sutker & Milnamow, Ltd.
A radiation-curable liquid coating composition which cures on radiation exposure to form a soft and tough coating and which is adapted for coating optical fiber is disclosed. This composition comprises a polyurethane, polyamide or polyurea oligomer having (1) a molecular weight in the range of about 2000 to about 8000; (2) amide, urea or urethane groups in an amount of one such group for every 300 to 900 units of weight; and (3) polyalkylene polyether, polyalkylene polysulfide or polyalkylene polyester groups in which the alkylene moiety contains 2-6 carbon atoms. The polyether, polysulfide or polyester constitutes about 40% to about 90% by weight of the oligomer, and each end of the oligomer is terminated with a monoethylenically unsaturated addition polymerizable group. From 20% to 50% of the weight of the composition is a radiation-curable monoethylenically unsaturated monomer having a T.sub.g below about 10.degree. C., and from 2% to 20% of the composition is a monoethylenically unsaturated monomer having a strong capacity for hydrogen bonding, such as vinyl pyrrolidone. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A radiation-curable liquid coating composition which cures on radiation exposure to form a soft and tough coating comprising, a polyurethane, polyamide or polyurea oligomer having (1) a molecular weight in the range of about 2000 to about 8000; (2) amide, urea or urethane groups in an amount of one such group for every 300 to 900 units of weight, and (3) polyalkylene polyether, polyalkylene polysulfide or polyalkylene polyester groups in which the alkylene moiety contains from 2-6 carbon atoms, said polyether, polysulfide or polyester constituting from about 40% to about 90% by weight of said oligomer, each end of said oligomer being terminated with a monoethylenically unsaturated addition polymerizable group, from 20% to 50%, based on the total weight of the composition, of a radiation-curable monoethylenically unsaturated monomer having a T.
sub.
g below about 10.
degree.
C.
, and from about 2% to about 20%, based on the total weight of the composition, of a monoethylenically unsaturated monomer having a strong capacity for hydrogen bonding.
2.
A coating composition as recited in claim 1 in which said oligomer is a polyurethane having a molecular weight in the range of about 2500 to about 6000.
3.
A coating composition as recited in claim 1 in which said alkylene moiety contains from 2-4 carbon atoms.
4.
A coating composition as recited in claim 3 in which said polyether, polysulfide or polyester has a molecular weight of from 300 to 2000.
5.
A coating composition as recited in claim 2 in which said polyurethane contains from 50% to 75% of said polyether, said polyether having a molecular weight of from 300 to 2000.
6.
A coating composition as recited in claim 1 in which said oligomer is a linear polymer terminated at each end with an acrylate group.
7.
A coating composition as recited in claim 6 in which said coating composition is curable with ultraviolet light and contains initiators and/or photosensitizers appropriate for rendering the composition curable by such radiation
|
| Related patents |
|
|
Ultraviolet curable optical glass fiber coatings from acrylate terminated, end-branched polyurethane polyurea oligomers
What is claimed is: 1. A ultraviolet curing liquid coating composition which, when cured with ultraviolet light in the presence of a photoinitiator, either provides a ...
|
|
|
Single-coated optical fiber
What is claimed is: 1. A method of producing coated optical glass fiber comprising, applying to freshly formed optical glass fiber a coating of radiation-curable liquid ...
|
|
|
Two stage activation of fluorided chromium-containing catalyst
It is an object of this invention to provide a catalyst for producing narrow molecular weight distribution polymer in a particle-form process; AND IT IS YET A FURTHER OBJ...
|
|
|
Non-impact electrothermic recording method
It is therefore an object of the present invention to provide a non-impact electrothermic recording method capable of reproducing images with high resolution and ...
|
|
|
Method and device for forming ultrafine particle film of compound
OF THE EMBODIMENTS As shown in FIG. 1, a vacuum vessel 1 is composed of a bell jar 1A, a feed through collar 1B and a base plate 1C. Within the vacuum vessel 1 are ...
|
|
|
Method of desensitization using desensitizing composition
OF THE INVENTION The above organic silicone reaction products used in this invention (hereinafter compounds of the invention) are known as nonionic surface active ...
|
|
|
Photodetection and current control devices
We claim: 1. A photodetection device comprising: means responsive to the intensity of incident radiation for providing a corresponding output signal, said responsive ...
|
|
|
Heat transfer sheet
OF THE INVENTION Each material, etc. of a heat transfer sheet of the present invention will be described in detail hereinafter. Base Film A conventional base film can ...
|
|
|
Polycarbonate resin composition for optical use
OF THE INVENTION The polycarbonate resin of the present invention is obtained by various manufacturing methods, including, for example, polymers and copolymers obtained ...
|
|
|
Asphalt highway joint sealant
That which is claimed is: 1. A composition which is stable in the absence of moisture but curable at room temperature upon exposure to moisture to a silicone elastomer ...
|
|
|
Adhesives and Rubbers 
