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1. 发明授权

US3840498A Film forming polyamide composition from fumaric acid and aromatic carbocyclic diisocyanate 失效
标题翻译：来自富马酸和芳香羧酸二异氰酸酯的聚酰胺成膜成膜
公开(公告)号：US3840498A
公开(公告)日：1974-10-08
申请号：US23431672
申请日：1972-03-13
申请人： STANDARD OIL CO
发明人： STEPHENS J
IPC分类号： C08G18/67 , C08G69/26 , C08G20/20
CPC分类号： C08G69/26 , C08G18/6755
摘要： 1. A FILM FORMING POLYAMIDE CONSISTING ESSENTIALLY OF THE POLYMERIC CONDENSATION PRODUCT PREPARED BY REACTING AN AROMATIC CARBOCYCLIC DIISOCYANATE AND FUMARIC ACID IN AN INERT POLAR SOLVENT BOILING ABOVE 100*C, AT A TEMPERATURE OF ABOUT 50-240* C, WHILE MAINTAINING A MOLAR RATIO OF THE DIISOCYANATE TO FUMARIC ACID OF 1:1 TO 1.5:1.

2. 发明授权

US3852248A Film forming polyamide composition containing fumaric acid and trimellitic acid residues 失效
标题翻译：形成含有富马酸和三聚氰酸残留物的聚酰胺组合物的成膜
公开(公告)号：US3852248A
公开(公告)日：1974-12-03
申请号：US23439572
申请日：1972-03-13
申请人： STANDARD OIL CO
发明人： STEPHENS J
IPC分类号： C08G73/14 , C08G20/32
CPC分类号： C08G73/14
摘要： Polyamide and polyamide-imide copolymers are disclosed. These are copolymers of polycarboxylic acids or their acid chlorides or their anhydrides reacted with a diprimary aromatic diamine or a diisocyanate in an organic polar solvent at a temperature of about -30*C. to 240*C. The polymers, coatings and fibers are useful as electrical coatings and molding compositions.
摘要翻译：公开了聚酰胺和聚酰胺 - 酰亚胺共聚物。这些是在约-30℃至240℃的温度下，在有机极性溶剂中的多元羧酸或其酰氯或其酸酐与二原子芳族二胺或二异氰酸酯反应的共聚物。聚合物，涂层和纤维是有用的作为电涂料和模塑组合物。

3. 发明授权

US3847878A Process for preparation of polyamide-imides and shaped articles of same 失效
标题翻译：制备聚酰胺和其形状的物品的方法
公开(公告)号：US3847878A
公开(公告)日：1974-11-12
申请号：US34886873
申请日：1973-04-09
申请人： STANDARD OIL CO
发明人： HANSON R , STEPHENS J
IPC分类号： C08G18/64 , C08G73/14 , H01B3/10 , H01B3/30 , C08G20/32
CPC分类号： C08G18/6438 , C08G73/14 , H01B3/105 , H01B3/306 , Y10S528/905 , Y10S528/906 , Y10T428/294 , Y10T428/31562 , Y10T428/31605 , Y10T428/31725
摘要： 1. A PROCESS FOR PREPARING HIGH MOLECULAR WEIGHT POLYAMIDE-IMIDE POLYMERS HAVING FILM-FORMING PROPERTIES WHICH PROCESS COMPRISES FIRST CONDENSING TRIMELLITIC ANHYDRIDE AND A PRIMARY DIAMINE IN A MOLE RATIO OF ABOUT 1 TO 0.55 TO ABOUT 1 TO 0.95 AT TEMPERATURE OF ABOUT 210*C, THE ABOUT 250*C. TO GIVE A LOW MOLECULAR WEIGHT PREPOLYMER HAVING THE CARBOXYLIC ACID ANHYDRIDE GROUPS REACTED WITH THE DIAMINE AND A PORTION OF THE CARBOXYLIC ACID GROUPS REACTED WITH THE DIAMINE LEAVING THE REMAINING CARBOXYLIC ACID GROUPS UNREACTED (AN EXCESS OF TRIMELLITIC ANHYDRIDE MOIETIES) AND SECOND FURTHER CONDENSING THIS PREPOLYMER WITH ABOUT 0.45 TO ABOUT 0.75 MOLES TO ABOUT 0.05 TO ABOUT 0.35 MOLES OF A DIISOCYANATE FOR EACH MOLE OF TRIMELLITIC ANHYDRIDE IN AN INERT SOLVENT AT A TEMPERATURE OF ABOUT 25*C. TO ABOUT 150*C.

4. 发明授权

US3839529A Preparation of polyamide-imide filaments 失效
标题翻译：聚酰亚胺纤维的制备
公开(公告)号：US3839529A
公开(公告)日：1974-10-01
申请号：US20936571
申请日：1971-12-17
申请人： STANDARD OIL CO
发明人： SERRES C , STEPHENS J
IPC分类号： D01F6/60 , D01F6/76 , D01F7/00
CPC分类号： D01F6/74
摘要： 1. A PROCESS FOR PREPARING ABRASION-RESISTANT, THERMALLY STABLE POLYAMIDE-IMIDE FILAMENTS FROM THE WATER PRECIPITATED AND WASHED POLYMER PREPARED BY REACTING ESSENTIALLY EQUIMOLAR QUANTITIES OF AN ACYL HALIDE DERIVATIVE OF TRIMELLITIC ACID ANHYDRIDE WHICH CONTAINS AT LEAST ONE ACYL HALIDE GROUP WITH THAT IN THE 4-RING POSITION AND AN AROMATIC PRIMARY DIAMINE, IN A POLAR ORGANIC SOLVENT, FOR A PERIOD OF TIME AND AT A TEMPERATURE BELOW 150*C. SUFFICIENT TO PRODUCE A POLYMER SUBSTANTIALLY IN THE POLYAMIC ACID FORM, WHICH PROCESS COMPRISES: (1) HEATING THE PRECIPITATED POLYMER AT A TEMPERATURE BETWEEN ABOUT 300*F. TO 600*F.; (2) DISSOLVING THE HEATED POLYMER INTO A POLAR ORGANIC SOLVENT AT SUCH A CONCENTRATION THAT THE SOLUTION VISCOSITY OF THE RESULTING SOLUTION IS AT LEAST ABOUT 1500 POISES WHEN MEASURED AT 25*C.; (3) SPINNING THE POLYMER SOLUTION INTO A GASEOUS ATMOSPHERE WHICH IS MAINTAINED AT A TEMPERATURE OF AT LEAST 450*F.; AND (4) CURING THE SPUN FILAMENTS FOR A TIME AND AT A TEMPERATURE ABOVE 300*F. SUFFICIENT TO CONVERT SUBSTANTIALLY ALL THE CARBOXYL AND AMIDE GROUPS AVAILABLE FOR FURTHER REACTION TO IMIDE GROUPS.

5. 发明授权

US3748304A Amide-imide copolymers 失效
标题翻译：酰胺共聚物
公开(公告)号：US3748304A
公开(公告)日：1973-07-24
申请号：US3748304D
申请日：1972-03-28
申请人： STANDARD OIL CO
发明人： STEPHENS J
IPC分类号： C08G73/14 , C08G20/32
CPC分类号： C08G73/14
摘要： NOVEL COPOLYMERS OF THE AMIDE-IMIDE TYPE ARE MADE FROM APPROXIMATELY EQUIMOLAR AMOUNT OF A MIXTURE OF TWO OR MORE LARGELY- OR WHOLLY-AROMATIC PRIMARY IDAMINES AND AN AROMATIC POLYCARBOXYLIC-ACID-ANHYDRIDE DERIVATIVE. THESE NOVEL COPOLYMERS ARE USEFUL FOR PREPARING ENAMELS, FILMS AND MOLDED ARTICLES OF SUPERIOR PROPERTIES.

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