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Cathode-ray tube having an improved shadow mask contour |
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Filament-like fibers and bundles thereof, and novel process and apparatus for production thereof |
| What we claim is: 1. A bundle of numerous melt-spun filaments, said bundle of filaments being ... |
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Organophilic modified polymers
| Details |
Inventors: Cowan, Jack C.; House, Roy F.; Granquist, Victor M.;
Assignee: Venture Chemicals, Inc. (Lafayette, LA)
Primary Examiner: Nutter; Nathan M.
Assistant Examiner:
Attorney, Agent or Firm: House; Roy F.
Organophilic polymer adducts which are effective fluid loss control additives for oil base well-working fluids are prepared from an anionic or cationic water soluble polymer and one or more phosphatides. Preferred phosphatides are phosphoglycerides obtained from vegetable oils, most preferably commercial lecithin. Preferred polymers comprise polysaccharides or derivatives thereof and synthetic polymers. |
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DETAILED DESCRIPTION What is claimed is: 1. An organophilic polymer comprising an adduct of (1) a water soluble anionic or cationic synthetic polymer wherein said anionic synthetic polymer is prepared by reacting under polymerizing conditions one or more ethylenically unsaturated acids with one or more ethylenically unsaturated non-ionic monomers, and wherein said cationic synthetic polymer is prepared by reacting under polymerizing conditions one or more ethylenically unsaturated amino or ammonium monomers with one or more of said non-ionic ethylenically unsaturated monomers, and (2) one or more phosphatides having the empirical formula R. sub. 1 --CO--O--CH. sub. 2 --CH(R. sub. 2)--CH. sub. 2 --Q where: R. sub. 1 is an aliphatic group containing from 8 to 29 carbon atoms; R. sub. 2 is selected from the group consisting of H, OH, R. sub. 1 COO, and OP(O)(O. sup. - zM. sup. a+)OZ; Q is selected from the group consisting of R. sub. 1 COO and OP(O)(O. sup. - zM. sup. a+)OZ; Z is selected from the group consisting of xM. sup. a+, C. sub. 6 H. sub. 6 (OH. sub. 5) and CH. sub. 2 --CH(Y)--N(R. sub. 3)(R. sub. 4)(R. sub. 5). sub. y (A. sup. b-). sub. v ; Y is selected from the group consisting of H and COO(xM. sup. a+); R. sub. 3, R. sub. 4, and R. sub. 5 are independently selected from the group consisting of H, aliphatic groups containing from 1 to 30 carbon atoms, and R. sub. 6 CO; R. sub. 6 is an aliphatic group containing from 1 to 29 carbon atoms; M is a cation selected from the group consisting of H, an alkali metal, an alkaline earth metal, ammonium, and mixtures thereof; A is an anion of valence b; y=0 or 1; w, x, and z=0 or 1/a where a is the valence of M; v=0 or a/b; and where Q is R. sub. 1 COO only when R. sub. 2 is OP(O)(O. sup. - zM. sup. a+)OZ. 2. The organophilic polymer of claim 1 wherein said phosphatide is a mixture of phosphatides where: R. sub. 2 =c R. sub. 1 COO+d OP(O)(O. sup. - zM. sup. a+)OZ; Q=d R. sub. 1 COO+c OP(O)(O. sup. - zM. sup. a+)OZ; R. sub. 1 is an aliphatic group containing from about 15 to about 17 carbon atoms; R. sub. 3, R. sub. 4, and R
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