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GB1182577A - Improvements in or relating to Elastic Monofilaments and process for producing same - Google Patents

Improvements in or relating to Elastic Monofilaments and process for producing same

Info

Publication number
GB1182577A
GB1182577A GB33235/68A GB3323568A GB1182577A GB 1182577 A GB1182577 A GB 1182577A GB 33235/68 A GB33235/68 A GB 33235/68A GB 3323568 A GB3323568 A GB 3323568A GB 1182577 A GB1182577 A GB 1182577A
Authority
GB
United Kingdom
Prior art keywords
polypropylene
temperature
monofilaments
elastic
azido
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
GB33235/68A
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.)
Hercules LLC
Original Assignee
Hercules LLC
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 Hercules LLC filed Critical Hercules LLC
Publication of GB1182577A publication Critical patent/GB1182577A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
    • F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

1,182,577. Elastic polypropylene monofilaments. HERCULES Inc. 11 July, 1968 [31 Aug., 1967], No. 33235/68. Heading B5B. Elastic monofilaments of bridged polypropylene are prepared by extruding molten stereoregular polypropylene containing from 0À02% to 0À08% by weight of an azido bridging agent, preferably at a temperature between 200‹ and 290‹ C. in the form of a monofilament, subjecting the extruded filament to a melt draw down of from 3:1 to 9À5:1, quenching the filament in an inert liquid preferably at a temperature of from 30‹ to 110‹ C. less than ¢ inch from the die and heat treating the solidified monofilament at a temperature from 130‹ to 155‹ C. The azido bridging agents described are sulfonazides of the general formula R(SO 2 N 3 ) x , where R is an organic radical inert to reaction with polypropylene and x is an integer greater than 1; and azidoformates of the general formula where R is an organic radical as defined above and y is an integer from 2 to 8.
GB33235/68A 1967-08-31 1968-07-11 Improvements in or relating to Elastic Monofilaments and process for producing same Expired GB1182577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66477467A 1967-08-31 1967-08-31

Publications (1)

Publication Number Publication Date
GB1182577A true GB1182577A (en) 1970-02-25

Family

ID=24667391

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33235/68A Expired GB1182577A (en) 1967-08-31 1968-07-11 Improvements in or relating to Elastic Monofilaments and process for producing same

Country Status (3)

Country Link
US (1) US3485906A (en)
DE (1) DE1775599A1 (en)
GB (1) GB1182577A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621088A (en) * 1968-08-09 1971-11-16 Phillips Petroleum Co High production of water-quenched filaments
US4384098A (en) * 1981-01-13 1983-05-17 Phillips Petroleum Company Filamentary polypropylene and method of making
NL1029276C2 (en) * 2005-06-17 2006-12-19 Desseaux H Tapijtfab Method for manufacturing monofilaments, as well as an artificial grass field composed of these.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA456914A (en) * 1949-05-24 Canadian Industries Limited Manufacture of artificial threads
US2324397A (en) * 1941-06-04 1943-07-13 Du Pont Method for production of continuous structures
US3054652A (en) * 1957-08-28 1962-09-18 Exxon Research Engineering Co Isotactic polypropylene melt spinning process
US3059991A (en) * 1959-03-20 1962-10-23 E B & A C Whiting Company Method of making oriented filamentary article of isotactic polypropylene
US3143584A (en) * 1959-05-12 1964-08-04 Ici Ltd Spinning polypropylenes which have been subjected to thermal degradation promoted bythe presence of sulfur compounds
US3127915A (en) * 1960-07-01 1964-04-07 Phillips Petroleum Co Synthetic knopped filaments
GB962231A (en) * 1967-11-13 1964-07-01 Canadian Celanese Ltd Process for the production of fibres of improved elastic recovery
US3330897A (en) * 1961-02-07 1967-07-11 Chemcell 1963 Ltd Production of fibers of improved elastic recovery
US3256258A (en) * 1961-05-05 1966-06-14 Du Pont Fibers
US3215486A (en) * 1962-04-17 1965-11-02 Toyo Spinning Co Ltd Fixation of polypropylene fibers impregnated with dyestuffs and other treating agents
US3323190A (en) * 1963-06-12 1967-06-06 Hercules Inc Elastic polypropylene yarn and process for its preparation
US3377415A (en) * 1964-05-27 1968-04-09 Hercules Inc Elastic polypropylene yarn and process
US3382306A (en) * 1964-06-12 1968-05-07 Hercules Inc Process of forming elastic polypropylene film

Also Published As

Publication number Publication date
US3485906A (en) 1969-12-23
DE1775599A1 (en) 1971-09-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees