GB616531A - Improvements in and relating to the coating of transparent water-swelling films - Google Patents

Improvements in and relating to the coating of transparent water-swelling films

Info

Publication number
GB616531A
GB616531A GB13979/45A GB1397945A GB616531A GB 616531 A GB616531 A GB 616531A GB 13979/45 A GB13979/45 A GB 13979/45A GB 1397945 A GB1397945 A GB 1397945A GB 616531 A GB616531 A GB 616531A
Authority
GB
United Kingdom
Prior art keywords
coating
solution
relating
butyl alcohol
added
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
GB13979/45A
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.)
British Sidac Ltd
Original Assignee
British Sidac Ltd
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 British Sidac Ltd filed Critical British Sidac Ltd
Publication of GB616531A publication Critical patent/GB616531A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/06—Cellulose hydrate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
    • C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08J2479/06—Polyhydrazides; Polytriazoles; Polyamino-triazoles; Polyoxadiazoles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A melamine-formaldehyde resin modified with butyl alcohol is made by mixing melamine with formaldehyde in the presence of trisodium phosphate and heating until an opalescent solution is obtained. On cooling, the portion solidifying is filtered off, stirred with butyl alcohol, toluene and phthalic anhydride, then distilled under reduced pressure. The viscous solution remaining is diluted with ethyl acetate, maleic anhydride added as a hardening agent and films coated with this solution. The coating is hardened by heat with removal of the solvent. Paraffin wax and resins and/or plasticizers may be added to the coating solution. Specification 590,698, [Group VIII], is referred to.
GB13979/45A 1944-02-19 1945-06-04 Improvements in and relating to the coating of transparent water-swelling films Expired GB616531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE616531X 1944-02-19

Publications (1)

Publication Number Publication Date
GB616531A true GB616531A (en) 1949-01-24

Family

ID=3875507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13979/45A Expired GB616531A (en) 1944-02-19 1945-06-04 Improvements in and relating to the coating of transparent water-swelling films

Country Status (3)

Country Link
FR (1) FR911157A (en)
GB (1) GB616531A (en)
NL (1) NL61646C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113208958A (en) * 2021-04-26 2021-08-06 西安蓝风生物科技有限公司 Hair follicle transdermal absorption plant essence composition, preparation method and application in shampoo

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113208958A (en) * 2021-04-26 2021-08-06 西安蓝风生物科技有限公司 Hair follicle transdermal absorption plant essence composition, preparation method and application in shampoo

Also Published As

Publication number Publication date
NL61646C (en)
FR911157A (en) 1946-07-01

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