DE68925543T2 - Verfahren und Zusammensetzung für die Eindickung und Stabilisierung von wässerigen Medien mit polyamphoterischen Polysacchariden - Google Patents

Verfahren und Zusammensetzung für die Eindickung und Stabilisierung von wässerigen Medien mit polyamphoterischen Polysacchariden

Info

Publication number
DE68925543T2
DE68925543T2 DE68925543T DE68925543T DE68925543T2 DE 68925543 T2 DE68925543 T2 DE 68925543T2 DE 68925543 T DE68925543 T DE 68925543T DE 68925543 T DE68925543 T DE 68925543T DE 68925543 T2 DE68925543 T2 DE 68925543T2
Authority
DE
Germany
Prior art keywords
water
starch
graft copolymer
acrylamide
visb
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.)
Expired - Fee Related
Application number
DE68925543T
Other languages
German (de)
English (en)
Other versions
DE68925543D1 (de
Inventor
John Ji-Hsiung Tsai
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 Starch and Chemical Investment Holding Corp
Original Assignee
National Starch and Chemical Investment Holding Corp
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 National Starch and Chemical Investment Holding Corp filed Critical National Starch and Chemical Investment Holding Corp
Publication of DE68925543D1 publication Critical patent/DE68925543D1/de
Application granted granted Critical
Publication of DE68925543T2 publication Critical patent/DE68925543T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions
    • C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Graft Or Block Polymers (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
DE68925543T 1988-04-26 1989-04-12 Verfahren und Zusammensetzung für die Eindickung und Stabilisierung von wässerigen Medien mit polyamphoterischen Polysacchariden Expired - Fee Related DE68925543T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18627888A 1988-04-26 1988-04-26

Publications (2)

Publication Number Publication Date
DE68925543D1 DE68925543D1 (de) 1996-03-14
DE68925543T2 true DE68925543T2 (de) 1996-06-20

Family

ID=22684321

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68925543T Expired - Fee Related DE68925543T2 (de) 1988-04-26 1989-04-12 Verfahren und Zusammensetzung für die Eindickung und Stabilisierung von wässerigen Medien mit polyamphoterischen Polysacchariden

Country Status (6)

Country Link
EP (1) EP0339372B1 (https=)
JP (1) JPH039901A (https=)
CA (1) CA1333109C (https=)
DE (1) DE68925543T2 (https=)
FI (1) FI891919A7 (https=)
NO (1) NO178242C (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2761366A1 (fr) * 1997-03-26 1998-10-02 Synthron Nouveaux copolymeres greffes amphoteres a biodegradabilite amelioree utilisables comme agents dispersants
US6281172B1 (en) 1999-04-07 2001-08-28 Akzo Nobel Nv Quaternary nitrogen containing amphoteric water soluble polymers and their use in drilling fluids
RU2224779C2 (ru) * 1999-04-07 2004-02-27 Акцо Нобель Н.В. Состав водосодержащего бурового раствора
JP4946051B2 (ja) * 2003-12-03 2012-06-06 東亞合成株式会社 水溶性高分子の製造方法
US7776181B2 (en) * 2004-12-28 2010-08-17 Toagosei Co., Ltd. Retention improving composition
MX2008000860A (es) * 2005-07-21 2008-04-04 Ciba Sc Holding Ag Complejos de polielectrolitos como espesantes para soluciones de sales de alta resistencia ionica.
EP2138560B2 (de) * 2008-06-24 2015-04-01 Cognis IP Management GmbH Reinigungsmittel enthaltend Pfropfcopolymere
CN104945562B (zh) * 2015-07-22 2017-11-24 陕西延长石油(集团)有限责任公司研究院 一种增稠剂及其制备方法
CN113773408B (zh) * 2021-09-08 2022-12-06 汕头大学 一种昆布多糖类化合物及其制备方法与应用

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976552A (en) * 1975-08-13 1976-08-24 The United States Of America As Represented By The Secretary Of Agriculture Water-soluble graft polymers produced by an outwardly dry radiation polymerization process
US4017460A (en) * 1975-12-10 1977-04-12 National Starch And Chemical Corporation Novel starch ethers
US4690996A (en) * 1985-08-28 1987-09-01 National Starch And Chemical Corporation Inverse emulsions

Also Published As

Publication number Publication date
DE68925543D1 (de) 1996-03-14
CA1333109C (en) 1994-11-15
JPH0553164B2 (https=) 1993-08-09
FI891919L (fi) 1989-10-27
EP0339372A2 (en) 1989-11-02
EP0339372A3 (en) 1990-10-31
FI891919A0 (fi) 1989-04-21
NO178242C (no) 1996-02-14
NO178242B (no) 1995-11-06
EP0339372B1 (en) 1996-01-31
FI891919A7 (fi) 1989-10-27
JPH039901A (ja) 1991-01-17
NO891682D0 (no) 1989-04-24
NO891682L (no) 1989-10-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee