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公开(公告)号：US3784391A
公开(公告)日：1974-01-08
申请号：US3784391D
申请日：1971-12-27
申请人： NL INDUSTRIES INC
摘要： Spheroidal shaped, hollow microcapsules of thermoplastic polymeric resins have been prepared which have an average diameter of from 0.1 Mu to 1.0 Mu . Each of the microcapsules are filled with air and have an average wall thickness of from about 3 percent to 30 percent of the diameter of the microcapsules. These microcapsules are obtained from an emulsion comprising water and microcapsules of the polymeric resin containing a nonsolvent for the resin. The microcapsules are suspended in the water and the non-solvent is present inside the microcapsules. Either one of these products, i.e. the microcapsules themselves or the water emulsion containing the microcapsules described above, may be used as an opacifier in paint or other systems.
摘要翻译： 制备了热塑性聚合物树脂的球形中空微胶囊，其平均直径为0.1〜1.0μm。 每个微胶囊充满空气，平均壁厚为微胶囊直径的约3％至30％。
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公开(公告)号：US3463767A
公开(公告)日：1969-08-26
申请号：US3463767D
申请日：1967-12-04
申请人： ALLIED CHEM
发明人： BUSH RICHARD W , MARRERO THOMAS R
CPC分类号： C08F8/06 , C08F8/50 , C08J3/05 , C08J2323/06 , C08K5/098 , C08K5/14 , C08L23/06 , C08F110/02
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3.发明授权Preparation of latexes by direct dispersion of acidic organic polymers into aqueous alkaline media 失效酸性有机聚合物直接分散在水性碱性介质中制备乳酸
公开(公告)号：US3799901A
公开(公告)日：1974-03-26
申请号：US12388871
申请日：1971-03-12
申请人： DOW CHEMICAL CO
CPC分类号： D21H19/22 , C08J3/05 , C08J2357/04 , C10G45/10 , D21H17/43 , D21H19/20 , Y10S524/907
摘要： SYNTHETIC LATEXES AND AQUEOUS COLLOIDAL DISPERSIONS, FREE OF ADDED EXTERNAL SURFACTANTS AND EMULSIFIERS, ARE MADE FROM NORMALLY SOLIDS, WATER- AND ALKALI-INSOLUBLE THERMOPLASTIC ORGANIC ADDITION POLYMERS CONTAINING PLURALITY OF ACID GROUPS IN THE POLYMER STRUCTURE AND WHICH ARE IN NON-COLLOIDAL MASSIVE FORM BY DIGESTING THE POLYMER IN ADMIXTURE WITH AN EVELOPING ALKALINE AQEOUS LIQUID MEDIUM UNTIL THE POLYMER SPONTANEOUSLY CONVERTS INTO COLLOIDAL PARTICLES IN THE AQUEOUS MEDIUM. IN AN EXAMPLE, A SOLID THERMOPLASTIC TERNARY COPOLYMER OF ETHYLENE, 11.2% BY WEIGHT ETHYL ACRYLATE, AND 11% BY WEIGHT ACRYLIC ACID, IN THE FORM OF MOLDING GRANULES, WAS CONVERTED TO LATEX FORM BY DIGESTION IN AQUEOUS AMMONIA OR IN AQUEOUS POTASSIUM HYDROXDE. THE RESULTING DISPERSIONS ARE USEFUL IN IMPREGNATING, COATING AND ADHESIVE COMPOSITIONS.
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公开(公告)号：US3640922A
公开(公告)日：1972-02-08
申请号：US3640922D
申请日：1969-04-03
申请人： DOW CHEMICAL CO
发明人： SHEETZ DAVID P
CPC分类号： C08F2/22
摘要： AQUEOUS COLLOIDAL DISPERSIONS HAVING IMPROVED STABILITY ARE PREPARED BY ADSORBING A POLYMERIZABLE SURFACTANT, SUCH AS SODIUM ALLYL A-SULFOPALMITATE, ON THE SURFACE OF PARTICLES DISPERSED IN AQUEOUS MEDIA, SUCH AS IN A PREFORMED LATEX, AND POLYMERIZING IN PLACE THE ADSORBED SURFACTANT. ORDINARILY AN AMOUNT OF POLYMERIZABLE SURFACTANT TO PROVIDE FROM ABOUT 50 PERCENT TO ABOUT 100 PERCENT COVERAGE OF THE PARTICLES IS USED.
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公开(公告)号：US3631140A
公开(公告)日：1971-12-28
申请号：US3631140D
申请日：1970-07-01
申请人： DU PONT
发明人： FANG JAMES C
CPC分类号： C08J3/11 , C08J2327/18
摘要： A PROCESS FOR PREPARING DISPERSIONS OF POLYTETRAFLUOROETHYLENE IN ORGANIC LIQUIDS WHICH COMPRISES MIXING PARTICULATE POLYTETRAFLUOROETHYLENE AND AN ORGANIC LIQUID HAVING A SURFACE TENSION BELOW ABOUT 25 DYNES PER CENTIMETER AND THEN MILLING THE MIXTURE.
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6.发明授权Aqueous emulsion paint employing novel low molecular weight acrylic polymer dispersing agents to achieve higher gloss 失效使用新型低分子量丙烯酸聚合物分散剂来实现更高胶体的水性乳液涂料
公开(公告)号：US3840487A
公开(公告)日：1974-10-08
申请号：US25199672
申请日：1972-05-10
申请人： ALLIED COLLOIDS MFG
发明人： DYSON A , MARSHALL D
CPC分类号： C09B67/0086 , C01P2006/60 , C08K3/013 , C09C1/24 , C09D7/45 , C08L33/02
摘要： IN WHICH R1, R2, R4 AND R5 MAY BE THE SAME OR DIFFERENT AND ARE HYDROGEN OR A METHYL GROUP AND R3 IS AN ALKYL GROUP CONTAINING FROM 1 TO 8 CARBON ATOMS.
R4-CH=C(-R5)-COO-R3
AND FROM 5 TO 60 MOLE PERCENT OF MOIETIES OF AN UNSATURATED CARBOXYLIC ACID ESTER OF THE FORMULA:
R1-CH=C(-R2)-COOH
1. IN AQUEOUS EMULSION GLOSS PAINT WHICH COMPRISES A BLEND OF A BINDER LATEX A PIGMENT DISPERSION CONTAINING, AS DISPERSING AGENT, FROM 0.01 TO 1%, BASES ON THE WEIGHT OF PIGMENT, OF A POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT BELOW 5,000 AND WHICH IS AN AMMONIUM OR ALKALI METAL SALT OF A COPOLYMER CONTAINING FROM 40 TO 95 MOLE PERCENT OF MOIETIES OF AN UNSATURATED MONOCARBOXYTIC ACID OF THE FORMULA:-
公开(公告)号：US3630985A
公开(公告)日：1971-12-28
申请号：US3630985D
申请日：1970-05-13
申请人： AMERICAN CYANAMID CO
发明人： TAKEYA KENJI , KOBASHI TOSHIYUKI
CPC分类号： C08J3/03 , C08J2333/20 , C08K5/0008 , D01F1/10 , D01F6/18 , D01F6/38 , C08L33/20
摘要： A PROCESS FOR PREPARING A STABLE SPINNING COMPOSITION COMPRISING AN ACRYLONITRILE POLYMER DISSOLVED IN A CONCENTRATED INORGANIC SOLVENT SOLUTION THEREFOR AND A SURFACE ACTIVE AGENT INSOLUBLE IN SAID SOLUTION IS DISCOLSED WHICH COMPRISES DISPERSING SAID SURFACE ACTIVE AGENT IN SAID SOLUTION, MAINTAINING SAID DISPERSION AS A FILM UNDER RETION, AND DEFOAMING SAID DISPERSION AS A FILM UNDER REDUCED PRESSURE AT A TEMPERATURE WHICH IS AT LEAST EQUAL TO THE BOILING POINT OF SAID COMPOSITION AT THE REDUCED PRESSURE EMPLOYED.
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8.发明授权
公开(公告)号：US3562196A
公开(公告)日：1971-02-09
申请号：US3562196D
申请日：1968-07-11
申请人： DU PONT
CPC分类号： C08J3/07
摘要： AN IMPROVED PROCESS FOR THE PREPARATION OF OLEFIN POLYMER DISPERSIONS, SUCH AS ETHYLENE/VINYL ACETATE COPOLYMER DISPERSIONS, IS PROVIDED. THE IMPROVEMENT COMPRISES ADDING VEGETABLE OILS OR REFINED SOLID OR LIQUID HYDROCARBONS DERIVED FRO PETROLEUM SUCH AS PARAFFIN WAXES OR LIGHT AND HEAVY MINERAL OILS TO SUPPRESS FOAM AT A SPECIFIC TIME DURING SOLVENT EVAPORATION.
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公开(公告)号：US3531557A
公开(公告)日：1970-09-29
申请号：US3531557D
申请日：1968-01-26
申请人： AMERICAN CYANAMID CO
CPC分类号： C08J3/05 , C08J2333/20
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公开(公告)号：US3445414A
公开(公告)日：1969-05-20
申请号：US3445414D
申请日：1964-06-01
发明人： GLYMPH EAKIN M , DAWSON HENRY G
CPC分类号： C08J3/07
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