GB539067A - Improvements in or relating to film casting surfaces - Google Patents

Improvements in or relating to film casting surfaces

Info

Publication number
GB539067A
GB539067A GB1541/40A GB154140A GB539067A GB 539067 A GB539067 A GB 539067A GB 1541/40 A GB1541/40 A GB 1541/40A GB 154140 A GB154140 A GB 154140A GB 539067 A GB539067 A GB 539067A
Authority
GB
United Kingdom
Prior art keywords
belt
relating
film casting
casting surfaces
casting
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
GB1541/40A
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.)
Wingfoot Corp
Original Assignee
Wingfoot Corp
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 Wingfoot Corp filed Critical Wingfoot Corp
Publication of GB539067A publication Critical patent/GB539067A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

539,067. Film casting surfaces. WING- FOOT CORPORATION. Jan. 25, 1940, No. 1541. Convention date, June 21, 1939. [Class 2 (ii)] In a process for forming films, from solutions of cellulosic materials, or rubber derivatives in organic solvents, by casting upon a belt, the casting surface upon the belt is formed of polyvinyl alcohol. The belt is formed of fabric or rubber and may be undercoated with gelatin plasticized with polyglycerol.
GB1541/40A 1939-06-21 1940-01-25 Improvements in or relating to film casting surfaces Expired GB539067A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US539067XA 1939-06-21 1939-06-21

Publications (1)

Publication Number Publication Date
GB539067A true GB539067A (en) 1941-08-27

Family

ID=21987341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1541/40A Expired GB539067A (en) 1939-06-21 1940-01-25 Improvements in or relating to film casting surfaces

Country Status (1)

Country Link
GB (1) GB539067A (en)

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