JPS5256148A - Process for preparing active substances having improved - Google Patents

Process for preparing active substances having improved

Info

Publication number
JPS5256148A
JPS5256148A JP50124587A JP12458775A JPS5256148A JP S5256148 A JPS5256148 A JP S5256148A JP 50124587 A JP50124587 A JP 50124587A JP 12458775 A JP12458775 A JP 12458775A JP S5256148 A JPS5256148 A JP S5256148A
Authority
JP
Japan
Prior art keywords
improved
active substances
preparing active
pva
active material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP50124587A
Other languages
Japanese (ja)
Other versions
JPS5232971B2 (en
Inventor
Aizo Yamauchi
Yasuo Matsuzawa
Kunio Kitao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Nitten Pharmaceutical Co Ltd
Original Assignee
Agency of Industrial Science and Technology
Nitten Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology, Nitten Pharmaceutical Co Ltd filed Critical Agency of Industrial Science and Technology
Priority to JP50124587A priority Critical patent/JPS5256148A/en
Publication of JPS5256148A publication Critical patent/JPS5256148A/en
Publication of JPS5232971B2 publication Critical patent/JPS5232971B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To introduce electrolytic or polar groups into a polyvinyl alcohol (PVA), thus reducing the release speed of an active material by means of the affinity of the active material for the PVA.
JP50124587A 1975-10-16 1975-10-16 Process for preparing active substances having improved Granted JPS5256148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50124587A JPS5256148A (en) 1975-10-16 1975-10-16 Process for preparing active substances having improved

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50124587A JPS5256148A (en) 1975-10-16 1975-10-16 Process for preparing active substances having improved

Publications (2)

Publication Number Publication Date
JPS5256148A true JPS5256148A (en) 1977-05-09
JPS5232971B2 JPS5232971B2 (en) 1977-08-25

Family

ID=14889144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50124587A Granted JPS5256148A (en) 1975-10-16 1975-10-16 Process for preparing active substances having improved

Country Status (1)

Country Link
JP (1) JPS5256148A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435485A1 (en) * 1978-09-07 1980-04-04 Sumitomo Chemical Co PROCESS FOR THE PREPARATION OF VERY ABSORBENT POLYMERS
JPS55102512A (en) * 1979-01-29 1980-08-05 Perstorp Ab Blend and its administration
EP0263647A2 (en) * 1986-10-06 1988-04-13 Shin-Etsu Chemical Co., Ltd. PVA gel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7811601B2 (en) 2003-04-03 2010-10-12 Seed Co., Ltd. Ophthalmic lenses capable of sustained drug release and preservative solutions therefor
JP5352983B2 (en) * 2006-10-19 2013-11-27 東レ株式会社 Ophthalmic lens
JP5900424B2 (en) * 2006-10-19 2016-04-06 東レ株式会社 Ophthalmic lens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435485A1 (en) * 1978-09-07 1980-04-04 Sumitomo Chemical Co PROCESS FOR THE PREPARATION OF VERY ABSORBENT POLYMERS
JPS55102512A (en) * 1979-01-29 1980-08-05 Perstorp Ab Blend and its administration
JPH0140013B2 (en) * 1979-01-29 1989-08-24 Perstorp Ab
EP0263647A2 (en) * 1986-10-06 1988-04-13 Shin-Etsu Chemical Co., Ltd. PVA gel
US4788242A (en) * 1986-10-06 1988-11-29 Shin-Estu Chemical Co., Ltd. Polyvinyl alcohol-based reversibly hydrated gel, highly water-absorptive resin and method for the preparation thereof

Also Published As

Publication number Publication date
JPS5232971B2 (en) 1977-08-25

Similar Documents

Publication Publication Date Title
AU505511B2 (en) Membrane process for separating materials
JPS5256148A (en) Process for preparing active substances having improved
JPS51151391A (en) Process for preparing l-sulfur- containing amino acids
JPS5213499A (en) Method for production of globule alumina support
JPS5215894A (en) Process for preparing a substance possessing biological actions
JPS5215896A (en) Process for preparing a novel antibiotic sf-1854 substance
JPS523581A (en) Permeable membrane forming process
BE846996R (en) PROCESS FOR PREPARING DIACETATES FROM BUTENEDIOLS,
JPS5256149A (en) Process for preparing active substances having durability
JPS5240483A (en) Process for dialysis of acid
JPS51125356A (en) Process for preparing 4-hydroxycyclopent -2-ene-1-one
JPS525684A (en) Indicator
JPS5217766A (en) Production method of porous arsenic dope silicone
JPS51134784A (en) Process for preparing hydrophilic polyvinyl chloride
JPS51138979A (en) A speed control device for table
JPS5279097A (en) Preparation of tobacco filter of polyvinyl alcohol synthetic fiber
JPS51121631A (en) An atmospheric pressure compensation apparatus
JPS529088A (en) Method for preparing polyolefin
JPS51144790A (en) Process for preparing l-cysteine derivatives
JPS5218894A (en) Process for preparing a novel antibiotic bn-175 substance
JPS5225885A (en) Method for modifying high polymers
JPS51144795A (en) Process for preparing an antibiotic substance,ab-2
JPS5279086A (en) Preparation of antibiotic tunicamycin
FR2309516A1 (en) PROCESS FOR PREPARING N-ACETOACETYL-2,5-DIMETHOXY-4-CHLORANILIDE
JPS51144796A (en) Process for preparing a new antibiotic substance, ar-110

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees