公开(公告)号：US3629237A

公开(公告)日：1971-12-21

申请号：US3629237D

申请日：1969-09-02

Applicant: SHINETSU CHEMICAL CO

Inventor： KOYANAGI SHUNICHI ,  OGAWA KINYA ,  YAMAMOTO AKIRA

IPC: A61K9/26 ,  A61K9/28 ,  A61K9/30 ,  A61K9/32 ,  C08B3/12 ,  C08B11/08 ,  C08B11/193 ,  C08B13/00 ,  C08B11/00

CPC classification number: C08B11/08 ,  A61K9/2866 ,  C08B3/12 ,  C08B11/193 ,  C08B13/00 ,  Y10S514/96

Abstract: ACID PHTHALATE OF CELLULOSE ETHERS REPRESENTED BY THE GENERAL FORMULA:

R1MR2NA

WHERE R1 IS A HYDROXYALKYL GROUP OF 3 OR 4 CARBON ATOMS, R2, HYDROGEN OR AN ALKYL GROUP OF 1 OR 2 CARBON ATOMS, M AND N ARE POSITIVE INTEGERS, AND A IS RESIDUAL CELLULOSE STRUCTURE WHICH ETHERS ARE READILY SOLUBLE IN WEAK ALKALINE SOLUTION, BESIDES POSSESSING HIGH SOLUBILITY IN ORGANIC SOLVENTS AND EXCELLENT RESISTANCE TO WATER; THEY ARE USEFUL AS ENTERIC COATINGS, AND DRUGS COATED WITH THEM CAN STAND LONG STORAGE AND ARE READILY SOLUBLE UPON PASSING INTO THE INTESTINES, THEREBY ENHANCING THE EFFECT OF THE DRUGS.

公开(公告)号：US3870702A

公开(公告)日：1975-03-11

申请号：US41418673

申请日：1973-11-09

Applicant: SHINETSU CHEMICAL CO

Inventor： KOYANAGI SHUNICHI ,  OGAWA KINYA ,  ONDA YOSHIRO ,  YAMAMOTO AKIRA

IPC: A61K9/28 ,  A61K9/50 ,  C08B13/00 ,  C08B11/00

CPC classification number: A61K9/2866 ,  A61K9/5042 ,  C08B13/00 ,  Y10S514/96

Abstract: Tetrahydrophthalic acid monoester or hexahydrophthalic acid monoester of a cellulose ether represented by the general formula:

Abstract translation: 由通式R1mR2nA表示的纤维素醚的四氢邻苯二甲酸单酯或六氢邻苯二甲酸单酯，其中R1是三或四个碳原子的羟烷基，R2是氢或一个或两个碳原子的烷基，m和n 是正整数，A是纤维素残基，除了在有机溶剂中具有高溶解性和优异的耐水性外，单酯易溶于弱碱性溶液; 它们可用作肠溶衣，并且其涂覆的药物可以长期储存，并且在通入肠道时容易溶解，从而增强药物的效果。

公开(公告)号：US3661867A

公开(公告)日：1972-05-09

申请号：US3661867D

申请日：1970-12-10

Applicant: SHINETSU CHEMICAL CO

Inventor： KOYANAGI SHUNICHI ,  KITAMURA HAJIME ,  OGAWA KINYA ,  TAJIMA SHIGENOBU

IPC: C08F14/00 ,  C08F2/00 ,  C08F2/18 ,  C08F4/00 ,  C08F4/28 ,  C08F14/06 ,  C08F1/11 ,  C08F3/30

CPC classification number: C08F14/06 ,  Y10S526/909 ,  C08F2/18

Abstract: A DIALKYL PEROXYDICARBONATE WHOSE ALKYL RADICAL HAS 1-8 CARBON ATOMS, AN ACETYL CYCLOHEXYL SULFONYL PEROXIDE OR A MIXTURE THEREOF IS ADDED TO VINYL CHLORIDE OR A MIXTURE OF VINYL MONOMERS HAVING VINYL CHLORIDE AS ITS MAIN COMPONENT, 0.001-0.5% BY WEIGHT, BASED ON THE WEIGHT OF THE MONOMERS(S), OF THE DIALKYL PEROXYDICARBONATE, ACETYLCYCLOHEXYL SULFONYL PEROXIDE OR MIXTURE THEREOF IS ADDED. THE RESULTANT MIXTURE IS MAINTAINED AT A TEMPERATURE NOT EXCEEDING 35*C. FOR 0.5 TO 2 HOURS. THE PH IS ADJUSTED TO 8-11. THE RESULTANT MIXTURE IS HEATED AT 4070*C. IN THE PRESENCE OF A POLYMERIZATION INITIATOR TO SUBSTANIALLY COMPLETE THE POLYMERIZATION. THE INITIATOR IS SELECTED FROM THE GROUP CONSISTING OF AZOBIS-2,4-DIMETHYLVALERONITRILE, AZOBISMETHOXYVALERONITRILE, AZOBISTRIMETHYLVALERONITRILE, TER-BUTYLPEROXYPIVALATE AND MIXTURES THEREOF. THE METHOD SUBSTANTIALLY PREVENTS POLYMER SCALE DEPOSITION ON THE INTERIOR WALLS OF THE POLYMERIZATION VESSEL. THE POLYMERIZATION INDUCTION PERIOD IS ELIMINATED. THE POLYVINYL CHLORIDE PRODUCED HAS LITTLE COLOR AND HAS SUPERIOR THERMAL STABILITY.

公开(公告)号：US3639270A

公开(公告)日：1972-02-01

申请号：US3639270D

申请日：1968-05-21

Applicant: SHINETSU CHEMICAL CO

Inventor： KOYANAGI SHUNICHI ,  OGAWA KINYA ,  AKIYA FUMIO

IPC: B01J27/06 ,  C07C17/152 ,  B01J11/78

CPC classification number: C07C17/152 ,  B01J27/06

Abstract: Catalyst composition suitable for the oxychlorination of hydrocarbons. The catalyst composition has superior thermal stability, a long-lasting catalytic activity and essentially consists of cupric chloride and a tantalum fluoride salt which are deposited on a porous carrier.

Abstract translation: 适用于烃类氧氯化的催化剂组合物。 催化剂组合物具有优异的热稳定性，持久的催化活性，并且基本上由沉积在多孔载体上的氯化铜和氟化钽盐组成。

公开(公告)号：US3598758A

公开(公告)日：1971-08-10

申请号：US3598758D

申请日：1968-05-21

Applicant: SHINETSU CHEMICAL CO

Inventor： KOYANAGI SHUNICHI ,  OGAWA KINYA ,  AKIYA FUMIO

IPC: B01J31/04 ,  B01J31/26 ,  C07C17/152 ,  C07C17/10

CPC classification number: B01J31/26 ,  B01J31/04 ,  B01J31/1616 ,  C07C17/152

Abstract: CATALYST SUITABLE FOR THE OXYCHLORINATION OF ALIPHATIC HYDROCARBONS. THE CATALYST HAS SUPERIOR THERMAL STABILITY, EXHIBITS LONG LASTING ACTIVITY AND ESSENTIALLY CONSISTS OF THREE INGREDIENTS IN DEFINED PROPORTIONS, NAMELY OF A MIXTURE OF AN ORGANIC COPPER COMPOUND, AN ALKALI METAL CHLORIDE AND AN AMMONIUM SALT, DEPOSITED ON A POROUS CARRIER. A METHOD FOR DEPOSITING THE THREE INGREDIENTS ON THE POROUS CARRIER IS ALSO PART OF THE INVENTION.