ES428751A1 - Surface treatment - Google Patents

Surface treatment

Info

Publication number
ES428751A1
ES428751A1 ES428751A ES428751A ES428751A1 ES 428751 A1 ES428751 A1 ES 428751A1 ES 428751 A ES428751 A ES 428751A ES 428751 A ES428751 A ES 428751A ES 428751 A1 ES428751 A1 ES 428751A1
Authority
ES
Spain
Prior art keywords
sulfonation
sulfur trioxide
objects
chamber
surface treatment
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
ES428751A
Other languages
Spanish (es)
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of ES428751A1 publication Critical patent/ES428751A1/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
    • C08J7/12—Chemical modification
    • C08J7/14—Chemical modification with acids, their salts or anhydrides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/006—Processes utilising sub-atmospheric pressure; Apparatus therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Electromechanical Clocks (AREA)

Abstract

Procedure and installation for the treatment of the surface of objects by means of sulfonation; objects that are preferably made of polymers of non-aromatic hydrocarbons, the sulfonation being carried out in an environment with a content of sulfur trioxide under depression and by subsequent neutralization; characterized by the fact that a closed chamber, containing the respective objects, is emptied and the sulfur trioxide vapor (SO3) is subsequently introduced into this same chamber in such a way that the atmosphere of the chamber contains for sulfonation, therefore minus 80% sulfur trioxide (SO3). (Machine-translation by Google Translate, not legally binding)
ES428751A 1973-08-08 1974-07-30 Surface treatment Expired ES428751A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1144773A CH581161A5 (en) 1973-08-08 1973-08-08

Publications (1)

Publication Number Publication Date
ES428751A1 true ES428751A1 (en) 1976-09-01

Family

ID=4373583

Family Applications (1)

Application Number Title Priority Date Filing Date
ES428751A Expired ES428751A1 (en) 1973-08-08 1974-07-30 Surface treatment

Country Status (7)

Country Link
CH (1) CH581161A5 (en)
ES (1) ES428751A1 (en)
FR (1) FR2240253B1 (en)
GB (1) GB1442578A (en)
IT (1) IT1017996B (en)
NL (1) NL159694B (en)
SE (1) SE419868B (en)

Also Published As

Publication number Publication date
GB1442578A (en) 1976-07-14
SE419868B (en) 1981-08-31
IT1017996B (en) 1977-08-10
NL7409578A (en) 1975-02-11
DE2345971A1 (en) 1975-03-27
FR2240253B1 (en) 1978-01-27
DE2345971B2 (en) 1975-07-17
CH581161A5 (en) 1976-10-29
SE7410048L (en) 1975-02-10
FR2240253A1 (en) 1975-03-07
NL159694B (en) 1979-03-15

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