GB1081957A - Dialdehyde polysaccharide compositions - Google Patents
Dialdehyde polysaccharide compositionsInfo
- Publication number
- GB1081957A GB1081957A GB4995764A GB4995764A GB1081957A GB 1081957 A GB1081957 A GB 1081957A GB 4995764 A GB4995764 A GB 4995764A GB 4995764 A GB4995764 A GB 4995764A GB 1081957 A GB1081957 A GB 1081957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- weight
- parts
- polysaccharide
- dialdehyde
- hypochlorite
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/18—Oxidised starch
- C08B31/185—Derivatives of oxidised starch, e.g. crosslinked oxidised starch
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Abstract
A composition dispersible in water at room temperature comprises a finely divided solidified reaction product of 70-85 parts by weight of a dialdehyde polysaccharide, in which 0.5-100 of each 100 units of anhydroglucose units have been oxidized to dialdehyde units represented by <FORM:1081957/C3/1> with (1) 15-30 parts by weight of a dicyandiamide-formaldehyde condensation product; or (2) 15-30 parts by weight of a hypochlorite oxidized polysaccharide or (3) a mixture of 7.5-15 parts by weight of the condensation product and 7.5-15 parts by weight of the hypochlorite-oxidized polysaccharide. The compositions may be made by forming an aqueous slurry of the dialdehyde starch and the other reactant or reactants, heating the slurry to 70-100 DEG C. with stirring, cooling the slurry to 70 DEG C., adjusting the pH to 4-5.5 and spray-drying. The reaction-products improve tensile wet-strenght in paper manufacture. Specified polysaccharides are starches, amylose, amylopectin, celluloses and gums.ALSO:The tensile wet strength of paper is improved by adding to the paper pulp, or treating paper with, an aqueous dispersion of a reaction product of 70-85 parts by weight of a dialdehyde polysaccharide with (1) 15-30 parts by weight of a dicyandiamide-formaldehyde condensation product or (2) 15-30 parts by weight of a hypochlorite oxidised polysaccharide; or (3) a mixture of 7.5-15 parts by weight of the condensation product and 7.5-15 parts by weight of the hypochlorite oxidised polysaccharide. In Examples, such reaction products, based on p starch, are added to bleached cellulosic Kraft pulp of 450 cc CSF and a consistency of 1.0 weight % based on oven-dry pulp, and handsheets are made therefrom. In one Example, zirconium oxychloride is also added to the pulp as a cationising agent, although the products of use of a separate cationising agent with the polysaccharide reaction products of the invention is not essential.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32995463A | 1963-12-12 | 1963-12-12 | |
| US329948A US3236792A (en) | 1963-12-12 | 1963-12-12 | Water-dispersible form of dialdehyde polysaccharides and process therefor |
| US329987A US3299052A (en) | 1963-12-12 | 1963-12-12 | Water-dispersible form of dialdehyde starch and process therefor |
| US406220A US3269964A (en) | 1964-10-26 | 1964-10-26 | Water dispersible form of dialdehyde polysaccharides and process therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1081957A true GB1081957A (en) | 1967-09-06 |
Family
ID=27502409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4995764A Expired GB1081957A (en) | 1963-12-12 | 1964-12-08 | Dialdehyde polysaccharide compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1081957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003020818A1 (en) * | 2001-08-31 | 2003-03-13 | Kevin Ray Anderson | Composition suitable as additives in the paper industry and paper comprising such composition |
-
1964
- 1964-12-08 GB GB4995764A patent/GB1081957A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003020818A1 (en) * | 2001-08-31 | 2003-03-13 | Kevin Ray Anderson | Composition suitable as additives in the paper industry and paper comprising such composition |
| US6710175B2 (en) | 2001-08-31 | 2004-03-23 | Kevin Ray Anderson | Compositions suitable as additives in the paper industry, preparation; use; and, paper comprising such |
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