FR2334708A1 - Greenhouse effect obtd. uniformly in a polyethylene film - by charging it with microspheres of monocalcic glass - Google Patents

Greenhouse effect obtd. uniformly in a polyethylene film - by charging it with microspheres of monocalcic glass

Info

Publication number
FR2334708A1
FR2334708A1 FR7538568A FR7538568A FR2334708A1 FR 2334708 A1 FR2334708 A1 FR 2334708A1 FR 7538568 A FR7538568 A FR 7538568A FR 7538568 A FR7538568 A FR 7538568A FR 2334708 A1 FR2334708 A1 FR 2334708A1
Authority
FR
France
Prior art keywords
microspheres
glass
greenhouse effect
monocalcic
polyethylene
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.)
Granted
Application number
FR7538568A
Other languages
French (fr)
Other versions
FR2334708B1 (en
Inventor
Vincent Girard
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.)
DELTATEX
Original Assignee
DELTATEX
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 DELTATEX filed Critical DELTATEX
Priority to FR7538568A priority Critical patent/FR2334708A1/en
Publication of FR2334708A1 publication Critical patent/FR2334708A1/en
Application granted granted Critical
Publication of FR2334708B1 publication Critical patent/FR2334708B1/fr
Granted 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/16—Solid spheres
    • C08K7/18—Solid spheres inorganic
    • C08K7/20—Glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
    • F24S80/52—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by the material
    • F24S80/525—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by the material made of plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
    • F24S80/56—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by means for preventing heat loss
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Greenhouses (AREA)

Abstract

A "greenhouse effect" is produced in a polyethylene film by addn. of microspheres of monocalcic glass, pref. of 10 mu mean dia. and having a true density of 2.45 (apparent density 1.5). The glass microspheres are introduced into the polyethylene in the form of a mixt. contg. 30% of microspheres. This mixt. is added to the extent of 20-25% to the polyethylene when the film is being extruded. A more uniform "greenhouse effect" is obtd. than with the minerals usually added to the polyethylene. Used in solar absorbers as well as greenhouses.
FR7538568A 1975-12-09 1975-12-09 Greenhouse effect obtd. uniformly in a polyethylene film - by charging it with microspheres of monocalcic glass Granted FR2334708A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7538568A FR2334708A1 (en) 1975-12-09 1975-12-09 Greenhouse effect obtd. uniformly in a polyethylene film - by charging it with microspheres of monocalcic glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7538568A FR2334708A1 (en) 1975-12-09 1975-12-09 Greenhouse effect obtd. uniformly in a polyethylene film - by charging it with microspheres of monocalcic glass

Publications (2)

Publication Number Publication Date
FR2334708A1 true FR2334708A1 (en) 1977-07-08
FR2334708B1 FR2334708B1 (en) 1978-07-28

Family

ID=9163817

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538568A Granted FR2334708A1 (en) 1975-12-09 1975-12-09 Greenhouse effect obtd. uniformly in a polyethylene film - by charging it with microspheres of monocalcic glass

Country Status (1)

Country Link
FR (1) FR2334708A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1306403A1 (en) * 2001-10-25 2003-05-02 Agriplast S.r.l. Transparent film with glass microspheres for agriculture
GB2539201A (en) * 2015-06-08 2016-12-14 Plastipack Limted Sheet material
EP3569410A1 (en) 2018-05-14 2019-11-20 Agriplast S.r.l. Agriculture covering film for greenhouses with high ir effectiveness, and shielding effect to n.i.r. radiations, gained with utilization of hollow glass microspheres, and relevant production method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1306403A1 (en) * 2001-10-25 2003-05-02 Agriplast S.r.l. Transparent film with glass microspheres for agriculture
GB2539201A (en) * 2015-06-08 2016-12-14 Plastipack Limted Sheet material
WO2016198840A1 (en) * 2015-06-08 2016-12-15 Plastipack Limited Sheet material
CN108064201A (en) * 2015-06-08 2018-05-22 普拉斯提派克有限公司 Sheet material
US10738493B2 (en) 2015-06-08 2020-08-11 Plastipack Limited Sheet material
GB2539201B (en) * 2015-06-08 2022-04-06 Plastipack Limted Sheet material
EP3569410A1 (en) 2018-05-14 2019-11-20 Agriplast S.r.l. Agriculture covering film for greenhouses with high ir effectiveness, and shielding effect to n.i.r. radiations, gained with utilization of hollow glass microspheres, and relevant production method

Also Published As

Publication number Publication date
FR2334708B1 (en) 1978-07-28

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Legal Events

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