MY101622A - A method for the treatment of natural rubber field latex. - Google Patents

A method for the treatment of natural rubber field latex.

Info

Publication number
MY101622A
MY101622A MYPI87001774A MYPI19871774A MY101622A MY 101622 A MY101622 A MY 101622A MY PI87001774 A MYPI87001774 A MY PI87001774A MY PI19871774 A MYPI19871774 A MY PI19871774A MY 101622 A MY101622 A MY 101622A
Authority
MY
Malaysia
Prior art keywords
natural rubber
enzyme
field latex
latex
treatment
Prior art date
Application number
MYPI87001774A
Inventor
Chen Seong-Fong Dr
Original Assignee
The Board Of The Rubber Res Institute Of Malaysia
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 The Board Of The Rubber Res Institute Of Malaysia filed Critical The Board Of The Rubber Res Institute Of Malaysia
Publication of MY101622A publication Critical patent/MY101622A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00—Treatment of rubber latex
    • C08C1/02—Chemical or physical treatment of rubber latex before or during concentration
    • C08C1/04—Purifying; Deproteinising
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C1/00—Treatment of rubber latex
    • C08C1/02—Chemical or physical treatment of rubber latex before or during concentration
    • C08C1/06—Preservation of rubber latex
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber
    • C08C19/04—Oxidation
    • C08C19/06—Epoxidation

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A METHOD FOR THE TREATMENT OF FRESH NATURAL RUBBER FIELD LATEX COMPRISES INCUBATING THE FIELD LATEX WITH A PROTEOLYTIC ENZYME AT A PH SUITABLE FOR THE ENZYME.THE AMOUNT OF ENZYME PRESENT AND THE INCUBATION CONDITIONS ARE SUCH THAT THE ENZYME-TREATED FIELD LATEX, WHEN SUBSEQUENTLY PROCESSSED INTO EPOXIDISED NATURAL RUBBER LATEX, HAS IMPROVED COAGULATION AND CREPEING PROPERITIES. A METHOD FOR THE PREPARATION OF EPOXIDISED NATURAL RUBBER FROM FRESH NATURAL RUBBER FIELD LATEX IS ALSO DESCRIBED. THIS COMPRISES (i) INCUBATING THE FIELD LATEX WITH A PROTEOLYTIC ENZYME AT A PH SUITABLE FOR THE ENZYME, (ii) EPOXIDISING THE ENZYME-TREATED FIELD LATEX TO THE DESIRED MOLE % LEVEL OF EPOXIDATION, (iii) COAGULATING THE EPOXIDISED NATURAL RUBBER LATEX, AND (iv) CREPEING, WASHING, CRUMBLING AND DRYING THE EPOXIDISED NATURAL RUBBER.
MYPI87001774A 1985-08-20 1987-09-19 A method for the treatment of natural rubber field latex. MY101622A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858520832A GB8520832D0 (en) 1985-08-20 1985-08-20 Treatment of natural rubber field latex

Publications (1)

Publication Number Publication Date
MY101622A true MY101622A (en) 1991-12-17

Family

ID=10584045

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI87001774A MY101622A (en) 1985-08-20 1987-09-19 A method for the treatment of natural rubber field latex.

Country Status (6)

Country Link
CN (1) CN1008096B (en)
BR (1) BR8603957A (en)
GB (2) GB8520832D0 (en)
IN (1) IN167854B (en)
MY (1) MY101622A (en)
OA (1) OA08402A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY137265A (en) 1992-08-05 2009-01-30 Kao Corp Methods for elevating or lowering the green strength of a natural rubber
US6204358B1 (en) 1992-08-05 2001-03-20 Kao Corporation Process for producing deproteinized natural rubber using protease and anionic surfactant
US7427646B2 (en) 2002-03-28 2008-09-23 Bridgestone Corporation Natural rubber, rubber composition and pneumatic tire
JP4679312B2 (en) * 2002-03-28 2011-04-27 株式会社ブリヂストン Natural rubber, rubber composition and pneumatic tire
DE60313721T2 (en) 2002-12-04 2008-01-17 Sumitomo Rubber Industries Ltd., Kobe Tire tread rubber composition and pneumatic tires made therewith
CN102504050B (en) * 2011-09-29 2014-03-19 海南天然橡胶产业集团股份有限公司 Preparation method for high-elastic damping natural rubber
CN102507280B (en) * 2011-10-20 2013-07-31 山西合成橡胶集团有限责任公司 Latex continuous film forming and drying device for synthetic rubber inspection
JP6061919B2 (en) * 2012-05-09 2017-01-18 株式会社ブリヂストン Natural rubber, rubber composition containing natural rubber, method for producing the same, and tire
CN108299702B (en) * 2018-01-30 2024-02-13 上海科邦医用乳胶器材有限公司 Latex resin composition for medical rubber gloves, preparation method and application thereof
CN112375265A (en) * 2020-11-13 2021-02-19 中国热带农业科学院农产品加工研究所 Low-protein natural rubber and preparation method thereof

Also Published As

Publication number Publication date
OA08402A (en) 1988-06-30
GB2179355A (en) 1987-03-04
IN167854B (en) 1990-12-29
GB2179355B (en) 1989-08-02
GB8620126D0 (en) 1986-10-01
CN86106292A (en) 1987-03-18
BR8603957A (en) 1987-03-24
CN1008096B (en) 1990-05-23
GB8520832D0 (en) 1985-09-25

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