GB722771A - Free-flowing starch powder - Google Patents

Free-flowing starch powder

Info

Publication number
GB722771A
GB722771A GB27361/52A GB2736152A GB722771A GB 722771 A GB722771 A GB 722771A GB 27361/52 A GB27361/52 A GB 27361/52A GB 2736152 A GB2736152 A GB 2736152A GB 722771 A GB722771 A GB 722771A
Authority
GB
United Kingdom
Prior art keywords
per cent
resin
starch
coated
weight
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
GB27361/52A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB722771A publication Critical patent/GB722771A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/02—Dusting, e.g. with an anti-offset powder for obtaining raised printing such as by thermogravure ; Varnishing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate

Abstract

A thermosetting silicone resin used for coating starch (see Group V) may be in the form of a liquid having a low viscosity, e.g. from 10 to 20 centistokes at 25 DEG C., and may be diluted with a low-viscosity inert solvent, e.g. naphtha, petroleum ether, carbon tetrachloride or ethylene dichloride. From 1.4 to 3 per cent by weight of a catalyst, e.g. a zinc salt of octanoic or caprylic acid, may be added to the resin to accelerate setting. Linear polysiloxanes having the formula <FORM:0722771/IV (a)/1> may be used.ALSO:In making a free-flowing starch powder, starch particles, e.g of a size not larger than 50 microns, are coated, e.g. sprayed, with a thin film of a thermosetting silicone resin in an amount from 0.03 to 0.15, preferably from 0.06 to 0.10, per cent. of the weight of starch, and the coated particles are then heated to set the resin. The resin may be a liquid having a low viscosity, e.g. from 10 to 20 centistokes at 25 DEG C., which may be diluted with a low viscosity inert solvent, e.g. naphtha, petroleum ether, carbon tetrachloride or ethylene dichloride. From 1.4 to 3 per cent. of a catalyst, e.g. a zinc salt of octanoic or caprylic acid, may be added to the resin to accelerate setting. The coated particles may be heated until they contain less than 2 per cent. of moisture. The coated and heat-treated particles may be lubricated with from 0.05 to 0.10 per cent. of their weight of a dry, powdered, non-caking, non-hygroscopic, inorganic salt, e.g. magnesium carbonate or tricalcium phosphate.
GB27361/52A 1950-07-11 1952-10-30 Free-flowing starch powder Expired GB722771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US173242A US2647892A (en) 1950-07-11 1950-07-11 Antioffset powder and process for preparing same

Publications (1)

Publication Number Publication Date
GB722771A true GB722771A (en) 1955-01-26

Family

ID=22631146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27361/52A Expired GB722771A (en) 1950-07-11 1952-10-30 Free-flowing starch powder

Country Status (2)

Country Link
US (1) US2647892A (en)
GB (1) GB722771A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961339A (en) * 1953-03-27 1960-11-22 Ivan A Wolff Free flowing, hydrophobic granular starch and method of making the same
US3071492A (en) * 1953-10-07 1963-01-01 Standard Brands Inc Method of rendering starch hydrophobic and free flowing
US2856354A (en) * 1954-07-02 1958-10-14 Arthur L Armentrout Lost circulation recovering material
US2866760A (en) * 1955-07-08 1958-12-30 Baker Ind Inc Compositions and methods for treating particulate solids
US2937990A (en) * 1955-09-28 1960-05-24 Ansul Chemical Co Extinguishing agent for combustible metals
US2816864A (en) * 1956-04-03 1957-12-17 Ansul Chemical Co Foam-compatible fire-extinguishing composition
US2988510A (en) * 1956-06-01 1961-06-13 Monsanto Chemicals Non-dusting detergent and bleaching composition
US3179588A (en) * 1960-12-19 1965-04-20 Gen Fire Extinguisher Corp Powdered fire extinguishing composition
US3236179A (en) * 1961-06-19 1966-02-22 Winton Engineering Company Method of eliminating offset in printing
US3310935A (en) * 1963-04-02 1967-03-28 Nat Starch Chem Corp Method for preparing yarn from fibers
US3491036A (en) * 1967-12-28 1970-01-20 Oxy Dry Intern Inc Anti-offset powder comprising dextrose powder and silicone resin treated starch and method of preventing offset from freshly printed papers
US4495226A (en) * 1982-07-06 1985-01-22 Dow Corning Corporation Method for preparing silicone-treated starch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030461A (en) * 1933-07-12 1936-02-11 Swann Res Inc Granular product conditioner and products made therewith
US2424853A (en) * 1944-05-06 1947-07-29 Gen Electric Titanium dioxide dielectric materials
US2449572A (en) * 1944-08-11 1948-09-21 Gen Electric Polysiloxane resins
US2500770A (en) * 1947-03-14 1950-03-14 Standard Oil Dev Co Method of making water-soluble materials water repellent
GB650131A (en) * 1948-06-29 1951-02-14 Dow Corning A method of rendering materials water-repellent

Also Published As

Publication number Publication date
US2647892A (en) 1953-08-04

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