GB1231861A - - Google Patents

Info

Publication number
GB1231861A
GB1231861A GB1601868A GB1231861DA GB1231861A GB 1231861 A GB1231861 A GB 1231861A GB 1601868 A GB1601868 A GB 1601868A GB 1231861D A GB1231861D A GB 1231861DA GB 1231861 A GB1231861 A GB 1231861A
Authority
GB
United Kingdom
Prior art keywords
films
stretching
shrinkage
longitudinal
bubble
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
GB1601868A
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 filed Critical
Publication of GB1231861A publication Critical patent/GB1231861A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L57/00—Compositions of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C08L57/02—Copolymers of mineral oil hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1,231,861. Polyolefin films. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 March, 1969 [3 April, 1968; 20 Dec., 1968], Nos. 16018/68 and 60719/68. Heading B5B. [Also in Division C3] Biaxially oriented films having greater orientation in the longitudinal direction are prepared by extruding and stretching compositions comprising (a) 70 to 95 weight per cent of a crystalline α-olefin polymer and (b) 30 to 5 weight per cent of an additive having a drop softening point above 70‹ C. and which is a terpene resin, hydrogenated hydrocarbon polymer or compatible modified rosin, to form films with a Gardner haze of less than 5%, a 45 degrees specular gloss of greater than 70 and being capable of forming a twist wrap which will retain a twist of at least 0À5. The films may have a higher degree of stretching in a longitudinal direction, which may be imparted by direct stretching or by differential shrinking. Preferably, the films are stretched equally in longitudinal and transverse directions, e.g. by the " bubble " process, and allowed to shrink transversely at elevated temperatures while restrained from longitudinal shrinkage, preferably by passing over heated rollers under conditions permitting controlled shrinkage. The films may be surface oxidized, or may contain antistatic agents, e.g. amines and glycerides, and may be treated with a corona discharge. In examples, compositions comprising polypropylene and hydrogenated poly-#-pinene, optionally with glyceryl mono- and distearates and bis-(2-hydroxyethyl) myristyl amine, are formed into tubular films by the " bubble " method and subjected to differential transverse shrinkage.
GB1601868A 1968-04-03 1968-04-03 Expired GB1231861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1601868 1968-04-03

Publications (1)

Publication Number Publication Date
GB1231861A true GB1231861A (en) 1971-05-12

Family

ID=10069681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1601868A Expired GB1231861A (en) 1968-04-03 1968-04-03

Country Status (1)

Country Link
GB (1) GB1231861A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2212438A (en) * 1987-11-16 1989-07-26 Courtaulds Films & Packaging Biaxially oriented polypropylene film
GB2212506A (en) * 1987-11-16 1989-07-26 Courtaulds Films & Packaging Polypropylene films
US5085943A (en) * 1987-11-16 1992-02-04 Courtaulds Films & Packaging (Holdings) Ltd. Polypropylene films
US5213744A (en) * 1987-04-21 1993-05-25 Exxon Chemical Patents Inc. Process for making polyolefin films
US5292563A (en) * 1990-11-24 1994-03-08 Hoechst Aktiengesellschaft Metallizable, twist wrap, biaxially oriented, polypropylene film
US5451455A (en) * 1990-10-02 1995-09-19 Hoechst Aktiengesellschaft Biaxially oriented polypropylene film suitable for twist wrapping
US5560948A (en) * 1993-05-29 1996-10-01 Hoechst Aktiengesellschaft Resin-containing, biaxially oriented, multilayer polypropylene film, process for the production thereof, and the use thereof
US5667902A (en) * 1996-04-30 1997-09-16 Mobil Oil Corporation High moisture barrier polypropylene-based film
US5777055A (en) * 1993-10-21 1998-07-07 Hoechst Aktiengesellschaft Resin-containing, biaxially oriented polypropylene film, process for the production thereof, and the use thereof
US6068936A (en) * 1995-09-28 2000-05-30 Ticona Gmbh Polyolefin film containing cycloolefin polymer, process for the production thereof, and the use thereof
WO2004062910A1 (en) * 2003-01-16 2004-07-29 Cedo Limited Multi-purpose food wrap and cooking film
US8063127B2 (en) 2005-12-06 2011-11-22 Polyplastics Co., Ltd. Antihazing agent for noncrystalline cycloolefin resins, resin compositions, and optical elements

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213744A (en) * 1987-04-21 1993-05-25 Exxon Chemical Patents Inc. Process for making polyolefin films
GB2212438A (en) * 1987-11-16 1989-07-26 Courtaulds Films & Packaging Biaxially oriented polypropylene film
GB2212506A (en) * 1987-11-16 1989-07-26 Courtaulds Films & Packaging Polypropylene films
GB2212438B (en) * 1987-11-16 1992-01-08 Courtaulds Films & Packaging Polypropylene films
US5085943A (en) * 1987-11-16 1992-02-04 Courtaulds Films & Packaging (Holdings) Ltd. Polypropylene films
US5451455A (en) * 1990-10-02 1995-09-19 Hoechst Aktiengesellschaft Biaxially oriented polypropylene film suitable for twist wrapping
US5573723A (en) * 1990-10-02 1996-11-12 Hoechst Aktiengesellschaft Process for preparing biaxially oriented polypropylene film suitable for twist wrapping
US5292563A (en) * 1990-11-24 1994-03-08 Hoechst Aktiengesellschaft Metallizable, twist wrap, biaxially oriented, polypropylene film
US5560948A (en) * 1993-05-29 1996-10-01 Hoechst Aktiengesellschaft Resin-containing, biaxially oriented, multilayer polypropylene film, process for the production thereof, and the use thereof
US6060139A (en) * 1993-05-29 2000-05-09 Hoechst Aktiengesellschaft Resin-containing, biaxially oriented, multilayer polypropylene film, process for the production thereof, and the use thereof
US5777055A (en) * 1993-10-21 1998-07-07 Hoechst Aktiengesellschaft Resin-containing, biaxially oriented polypropylene film, process for the production thereof, and the use thereof
US6068936A (en) * 1995-09-28 2000-05-30 Ticona Gmbh Polyolefin film containing cycloolefin polymer, process for the production thereof, and the use thereof
US5667902A (en) * 1996-04-30 1997-09-16 Mobil Oil Corporation High moisture barrier polypropylene-based film
WO2004062910A1 (en) * 2003-01-16 2004-07-29 Cedo Limited Multi-purpose food wrap and cooking film
US8063127B2 (en) 2005-12-06 2011-11-22 Polyplastics Co., Ltd. Antihazing agent for noncrystalline cycloolefin resins, resin compositions, and optical elements

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees