GB1107687A - Adducts of polygalactomannan gums and process for preparing same - Google Patents

Adducts of polygalactomannan gums and process for preparing same

Info

Publication number
GB1107687A
GB1107687A GB5187166A GB5187166A GB1107687A GB 1107687 A GB1107687 A GB 1107687A GB 5187166 A GB5187166 A GB 5187166A GB 5187166 A GB5187166 A GB 5187166A GB 1107687 A GB1107687 A GB 1107687A
Authority
GB
United Kingdom
Prior art keywords
adducts
polygalactomannan
acrylamide
ammonium hydroxide
water
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
Application number
GB5187166A
Inventor
Robert Nordgren
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.)
General Mills Inc
Original Assignee
General Mills Inc
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 General Mills Inc filed Critical General Mills Inc
Priority to GB5187166A priority Critical patent/GB1107687A/en
Priority to FR86500A priority patent/FR1503385A/en
Priority to BE690846D priority patent/BE690846A/xx
Publication of GB1107687A publication Critical patent/GB1107687A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
    • C08B37/0087—Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e. L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from Acacia Senegal or Acacia Seyal; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
    • C08B37/0087—Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e. L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from Acacia Senegal or Acacia Seyal; Derivatives thereof
    • C08B37/0093—Locust bean gum, i.e. carob bean gum, with (beta-1,4)-D-mannose units in the main chain branched with D-galactose units in (alpha-1,6), e.g. from the seeds of carob tree or Ceratonia siliqua; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
    • C08B37/0087—Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e. L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from Acacia Senegal or Acacia Seyal; Derivatives thereof
    • C08B37/0096—Guar, guar gum, guar flour, guaran, i.e. (beta-1,4) linked D-mannose units in the main chain branched with D-galactose units in (alpha-1,6), e.g. from Cyamopsis Tetragonolobus; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
    • C07C2523/44—Palladium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/74—Iron group metals
    • C07C2523/755—Nickel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Emergency Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Botany (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Polygalactomannan-acrylamide adducts are made by reaction of a polygalactomannan with acrylamide, preferably at 25-100 DEG C., in water and/or an organic solvent, e.g. isobutanol or t-butanol, in the presence of an alkaline catalyst, e.g. an alkali metal, alkaline earth metal or ammonium hydroxide, or trimethyl benzyl ammonium hydroxide, at up to 30 p.s.i. pressure. Specified polygalactomannans are guar and locust bean gum. The adducts may have a D.S. in the range 0.1-3.0, and are readily dispersible in water to yield clear sols., which are useful as flocculants (see Division C1).ALSO:Polygalactomannan-acrylamide adducts in the form of aqueous sols may be used to flocculate slimes of bentonite or kaolin.
GB5187166A 1965-12-07 1966-11-11 Adducts of polygalactomannan gums and process for preparing same Expired GB1107687A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5187166A GB1107687A (en) 1966-11-11 1966-11-11 Adducts of polygalactomannan gums and process for preparing same
FR86500A FR1503385A (en) 1965-12-07 1966-12-07 Catalytic reduction process for organic compounds
BE690846D BE690846A (en) 1965-12-07 1966-12-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5187166A GB1107687A (en) 1966-11-11 1966-11-11 Adducts of polygalactomannan gums and process for preparing same

Publications (1)

Publication Number Publication Date
GB1107687A true GB1107687A (en) 1968-03-27

Family

ID=10461712

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5187166A Expired GB1107687A (en) 1965-12-07 1966-11-11 Adducts of polygalactomannan gums and process for preparing same

Country Status (1)

Country Link
GB (1) GB1107687A (en)

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