WO1999062695A1 - Revetements hybrides ayant une adherence reduite a un materiau caoutchouteux non vulcanise - Google Patents

Revetements hybrides ayant une adherence reduite a un materiau caoutchouteux non vulcanise Download PDF

Info

Publication number
WO1999062695A1
WO1999062695A1 PCT/US1998/011069 US9811069W WO9962695A1 WO 1999062695 A1 WO1999062695 A1 WO 1999062695A1 US 9811069 W US9811069 W US 9811069W WO 9962695 A1 WO9962695 A1 WO 9962695A1
Authority
WO
WIPO (PCT)
Prior art keywords
liner
sticking
propensity
unvulcanized
strip
Prior art date
Application number
PCT/US1998/011069
Other languages
English (en)
Inventor
Richard David Vargo
Charles Terry Huffstetler
Original Assignee
The Goodyear Tire & Rubber Company
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 The Goodyear Tire & Rubber Company filed Critical The Goodyear Tire & Rubber Company
Priority to PCT/US1998/011069 priority Critical patent/WO1999062695A1/fr
Priority to US09/719,023 priority patent/US7094456B1/en
Priority to AU77098/98A priority patent/AU7709898A/en
Priority to JP2000551936A priority patent/JP2002516786A/ja
Priority to BR9815872-4A priority patent/BR9815872A/pt
Priority to EP98925066A priority patent/EP1084023A1/fr
Priority to CA002333102A priority patent/CA2333102A1/fr
Publication of WO1999062695A1 publication Critical patent/WO1999062695A1/fr

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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0067—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
    • B29C37/0075—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other using release sheets
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/0016—Handling tyres or parts thereof, e.g. supplying, storing, conveying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/28—Wound package of webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/0016—Handling tyres or parts thereof, e.g. supplying, storing, conveying
    • B29D2030/0038—Handling tyre parts or semi-finished parts, excluding beads, e.g., storing, transporting, transferring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/172—Composite material
    • B65H2701/1722—Composite material including layer with adhesive properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1846—Parts concerned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/194—Web supporting regularly spaced adhesive articles, e.g. labels, rubber articles, labels or stamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/93—Tyres

Definitions

  • the invention pertains to the manufacture of articles utilizing tacky or sticky components, generally in strip or sheet form.
  • tacky or sticky components generally in strip or sheet form.
  • One common application of the invention is in the tire manufacturing industry where unvulcanized elastomeric components are commonly extruded in strip or sheet form and are wrapped in liners until they are incorporated into the tire during the manufacturing process.
  • U.S. Patent No. 4,006,051 to Board, Jr. discloses a laminate liner to be secured to a supporting surface.
  • the liner comprises, in combination, a backing sheet member characterized by a large number of holes, a fibrous, polymeric sheet material characterized by small holes, and a hardenable resin binder material.
  • the resin binder material is impregnated into the openings of the backing member and the fibrous, polymeric sheet material is compressed into the openings of the backing member to conform an integral, unitary, laminate liner.
  • U.S. Patent No. 5,612,107 to Sangani et al. discloses a composite construction which comprises a layer of plasticized polymer film, a release-coated liner, and a plasticizer-resistant polymer back coating on the other surface of the release coated liner B.
  • a liner for storing unvulcanized elastomeric materials includes a first end and a second end.
  • the liner has a first portion extending from the first end of the liner to a first transition region in the liner.
  • a second portion extends from the first transition region in the liner to the second end of the liner.
  • the first portion of the liner is made of a first material and the second portion of the liner being made of a second material.
  • Unvulcanized materials tend to stick to the first portion of the liner at a first propensity for sticking and tend to stick to the second portion of the liner at a second propensity for sticking, with the first propensity for sticking being different than the second propensity for sticking.
  • Figure 1 is a schematic, side view of a liner 10, an elastomeric material 20 partially wound onto a roll 30.
  • the liner 10 and elastomeric material 20 are shown larger that actual size in order better to show the invention.
  • Figure 2 is a chart illustrating certain technical data from tests on the invention.
  • Figure 3 is a schematic, plan view of one embodiment of the inventive liner
  • Figure 4 is a schematic, plan view of a second embodiment of the inventive liner 10.
  • a liner is essentially a long, rectangular piece of cloth or other planar member.
  • the elastomeric strip is placed on the top surface of the liner and then one end of the liner/component combination is wound, thereby creating a spiral from a side view.
  • a component and liner in the process of being rolled up into a spiral is illustrated.
  • a liner 10 includes a first end 12 and a second end 14.
  • An associated elastomeric material 20 is placed upon an upper surface 16 of the liner 10.
  • the liner 10 and elastomeric material 20 are shown in the process of being wound into a roll 24.
  • the end view of the roll 24 resembles a spiral pattern, with the first end 12 of the liner 10 being at the center of the spiral and successive layers of liner 10 and elastomeric material 20 being wrapped around the first end 12 of the liner 10.
  • the roll 32 is suspended by some sort of cylindrical axis 30.
  • the weight of the elastomeric material 20 in the roll 24 can begin to crush the liner 10 and elastomeric material 20.
  • this crushing occurs in the upper portion of the roll 32.
  • the crushing occurs in the core of a roll of material 20 that is "center-driven”, meaning it is rotated by applying a torque to the center of the roll 32.
  • a related, but separate problem also stemming from the "stuck-to-liner" is that of an unvulcanized elastomeric component which has lumps within it.
  • the lumps are due to prematurely cured or vulcanized rubber due to an excessive heat history.
  • the cured lump of rubber can commonly occur from reuse of scrap inner liner material. This gives rise to the heat history.
  • the inventors having invented a system and a method of winding, unvulcanized, elastomeric materials into rolls 24 which greatly reduces the "stuck-to- liner" problem.
  • the propensity for sticking between the cotton liner and the unvulcanized elastomeric inner liner is illustrated by the squares on the chart while the propensity for the unvulcanized inner liner to stick to the polyester liner is demonstrated by the circles on the chart.
  • the propensity to adhere is represented as a function of position within the roll 24.
  • the cotton liner provides better release characteristics.
  • the cotton liner material is approximately four times the cost of the polyester liner. The inventors have discovered a way to provide better performance with respect to the "stuck-to-liner" problem while providing cost advantages previously unavailable.
  • a hybrid liner 40 is disclosed.
  • the hybrid liner 40 has a first portion 42 and a second portion 44.
  • the first portion 42 has a first end 46 and a second end 48.
  • the second portion 44 has a first end 52 and a second end 54.
  • the second end 48 of the first portion 42 is fixedly attached to the first end 52 of the second portion 44.
  • the attachment is made by sewing the first portion 42 to the second portion 44, thereby creating a seam 56.
  • the seam 56 is a line perpendicular to the longitudinal centerline CL of the hybrid liner 40. While this is the preferred embodiment of the hybrid liner 40, more elaborate designs may include a zone of transition 60.
  • the zone of transition 60 might be a blend of the materials together, or it might be a diagonal straight line (one that is not generally perpendicular to the longitudinal centerline CL of the liner 40), or may be some sort of a curvilinear, non- liner line. While the zone of transition may be configured however the particular application requires, the preferred zone of transition for the hybrid liner 40 is a simple seam 56 which sews the second end 48 of the first portion 42 to the first end 52 of the second portion 44.
  • the first portion 42 of the hybrid liner 40 is made of cotton while the second portion 44 of the hybrid liner 40 is made of polyester.
  • the elastomeric material 20 is wound onto the hybrid liner 40 so that the first end 46 of the first portion 42 is closest to the axis 30. In this way, the first portion 42 of the hybrid liner 40 is at the center of the roll 24, nearer the axis 30. Since it is the center portion of the roll 40 where the "stuck-to-liner" problem is most likely to occur, the first portion 42 of the hybrid liner 40 is made of the relatively expensive cotton material.
  • the second portion 44 is made of polyester, as the second portion of the hybrid liner 40 will be nearer the outer layers of roll 24 where the "stuck-to-liner" problem is less likely to occur.
  • the link 62 of the first portion 42 is less than the length 64 of the second portion 44. Because of this difference in length, of course, cost savings accrue due to the invention.
  • the respective lengths 62, 64 should be adjusted with respect to each application.
  • the length 62 of the first portion 42 was 75 yards (68.6 meters) while the length 64 of the second portion 44 was 145 yards (132.6 meters).
  • FIG. 4 a second embodiment of the invention is disclosed.
  • the embodiment shown in Figure 4 is especially suited for surface wound rolls.
  • the liners 10, 40 do not have to be rerolled after letting off on the tire machine and rolling up on the calender.
  • the cotton liner (the first portion 42) is only needed on one end of the hybrid liner 40.
  • the hybrid liner would have to be rerolled after letting off at the tire machine and rolling up on the calender.
  • a hybrid liner 70 has a first portion 72, a second portion 74, and a third portion 76.
  • the operation and function of the third portion 76 is essentially identical to that of the first portion 42 illustrated in Figure 3 and discussed above.
  • the primary difference between the hybrid liner 70 shown in Figure 4 and the hybrid liner 40 shown in Figure 3 is simply that the hybrid liner 70 shown in Figure 4 performs the desired advantages without the requirement of rerolling.
  • a first end 80 of the first portion 72 can be affixed to the axis 30, or, a second end 84 of the third portion 76 can be affixed to the axis 30.
  • the relative lengths of each of the first, second, and third portions 72, 74, 76 of the hybrid liner 70 are as described above regarding the hybrid liner 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Tyre Moulding (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Packages (AREA)

Abstract

Cette invention concerne un revêtement hybride (40) ainsi qu'un système servant à l'utilisation de ce revêtement hybride. Ce revêtement comprend une première partie (42) qui est faite d'un premier matériau, ainsi qu'une seconde partie (44) qui est faite d'un matériau distinct. Les deux matériaux possèdent des propensions différentes à l'adhérence sur un composant caoutchouteux non vulcanisé (20), ainsi que des coûts différents. Cette invention consiste à utiliser le revêtement le moins collant et le plus cher dans les zones du rouleau de revêtement où un collage a le plus de chance de se produire, et à utiliser le matériau moins cher là où l'adhérence du revêtement au caoutchouc pose moins de problèmes.
PCT/US1998/011069 1998-06-01 1998-06-01 Revetements hybrides ayant une adherence reduite a un materiau caoutchouteux non vulcanise WO1999062695A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
PCT/US1998/011069 WO1999062695A1 (fr) 1998-06-01 1998-06-01 Revetements hybrides ayant une adherence reduite a un materiau caoutchouteux non vulcanise
US09/719,023 US7094456B1 (en) 1998-06-01 1998-06-01 Hybrid liners having reduced adhesion to an unvulcanized rubber material
AU77098/98A AU7709898A (en) 1998-06-01 1998-06-01 Hybrid liners having reduced adhesion to an unvulcanized rubber material
JP2000551936A JP2002516786A (ja) 1998-06-01 1998-06-01 ハイブリッドライナー
BR9815872-4A BR9815872A (pt) 1998-06-01 1998-06-01 Forros hìbridos possuindo aderência reduzida a um material de borracha não-vulcanizada
EP98925066A EP1084023A1 (fr) 1998-06-01 1998-06-01 Revetements hybrides ayant une adherence reduite a un materiau caoutchouteux non vulcanise
CA002333102A CA2333102A1 (fr) 1998-06-01 1998-06-01 Revetements hybrides ayant une adherence reduite a un materiau caoutchouteux non vulcanise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1998/011069 WO1999062695A1 (fr) 1998-06-01 1998-06-01 Revetements hybrides ayant une adherence reduite a un materiau caoutchouteux non vulcanise

Publications (1)

Publication Number Publication Date
WO1999062695A1 true WO1999062695A1 (fr) 1999-12-09

Family

ID=22267176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/011069 WO1999062695A1 (fr) 1998-06-01 1998-06-01 Revetements hybrides ayant une adherence reduite a un materiau caoutchouteux non vulcanise

Country Status (5)

Country Link
EP (1) EP1084023A1 (fr)
JP (1) JP2002516786A (fr)
AU (1) AU7709898A (fr)
CA (1) CA2333102A1 (fr)
WO (1) WO1999062695A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002053356A1 (fr) * 2000-12-29 2002-07-11 Pirelli Pneumatici S.P.A. Procede et appareil de fabrication de pneumatiques
WO2002102566A1 (fr) * 2001-06-15 2002-12-27 Pirelli Pneumatici S.P.A. Procede de production et de stockage d'un produit en caoutchouc non vulcanise
WO2005051635A1 (fr) * 2003-11-27 2005-06-09 Nuova Pansac S.P.A. Procede et installation de fabrication d'un film polyolefinique elastique respirant
WO2009098160A1 (fr) * 2008-02-04 2009-08-13 Société de Technologie Michelin Procédé et dispositif de fabrication d'un renfort par enroulement d'une bandelette sur elle-même
WO2016051257A1 (fr) 2014-09-30 2016-04-07 Pirelli Tyre S.P.A. Pneu pour roues de véhicule

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7139784B2 (ja) * 2018-08-24 2022-09-21 住友ゴム工業株式会社 巻き取りライナー

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1543283A (en) * 1921-12-19 1925-06-23 Goodrich Co B F Nonsticking liner for sheet rubber
US2067667A (en) * 1934-04-14 1937-01-12 Du Pont Liner cloth
US2541498A (en) * 1948-01-29 1951-02-13 Goodrich Co B F Polyethylene as a liner for tacky rubber
US5004635A (en) * 1988-09-02 1991-04-02 Bridgestone/Firestone, Inc. Contoured liner for preassembled tire components

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1543283A (en) * 1921-12-19 1925-06-23 Goodrich Co B F Nonsticking liner for sheet rubber
US2067667A (en) * 1934-04-14 1937-01-12 Du Pont Liner cloth
US2541498A (en) * 1948-01-29 1951-02-13 Goodrich Co B F Polyethylene as a liner for tacky rubber
US5004635A (en) * 1988-09-02 1991-04-02 Bridgestone/Firestone, Inc. Contoured liner for preassembled tire components

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002053356A1 (fr) * 2000-12-29 2002-07-11 Pirelli Pneumatici S.P.A. Procede et appareil de fabrication de pneumatiques
WO2002102566A1 (fr) * 2001-06-15 2002-12-27 Pirelli Pneumatici S.P.A. Procede de production et de stockage d'un produit en caoutchouc non vulcanise
WO2005051635A1 (fr) * 2003-11-27 2005-06-09 Nuova Pansac S.P.A. Procede et installation de fabrication d'un film polyolefinique elastique respirant
WO2009098160A1 (fr) * 2008-02-04 2009-08-13 Société de Technologie Michelin Procédé et dispositif de fabrication d'un renfort par enroulement d'une bandelette sur elle-même
WO2016051257A1 (fr) 2014-09-30 2016-04-07 Pirelli Tyre S.P.A. Pneu pour roues de véhicule

Also Published As

Publication number Publication date
AU7709898A (en) 1999-12-20
JP2002516786A (ja) 2002-06-11
EP1084023A1 (fr) 2001-03-21
CA2333102A1 (fr) 1999-12-09

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