CN115397899B - 复合聚合物膜 - Google Patents

复合聚合物膜 Download PDF

Info

Publication number
CN115397899B
CN115397899B CN202180016294.5A CN202180016294A CN115397899B CN 115397899 B CN115397899 B CN 115397899B CN 202180016294 A CN202180016294 A CN 202180016294A CN 115397899 B CN115397899 B CN 115397899B
Authority
CN
China
Prior art keywords
heat
sealable
composite film
eva
film according
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.)
Active
Application number
CN202180016294.5A
Other languages
English (en)
Chinese (zh)
Other versions
CN115397899A (zh
Inventor
邓风华
刘胜生
埃里克·纳尔森
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.)
Mylar Specialty Films US LP
Original Assignee
DuPont Teijin Films US LP
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 DuPont Teijin Films US LP filed Critical DuPont Teijin Films US LP
Publication of CN115397899A publication Critical patent/CN115397899A/zh
Application granted granted Critical
Publication of CN115397899B publication Critical patent/CN115397899B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/343—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated in a conventional oven, e.g. a gas or electric resistance oven
    • 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
    • C08J7/04—Coating
    • C08J7/0427—Coating with only one layer of a composition containing a polymer binder
    • 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
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • 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
    • C08J7/04—Coating
    • C08J7/052—Forming heat-sealable coatings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
    • C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D123/04—Homopolymers or copolymers of ethene
    • C09D123/08—Copolymers of ethene
    • C09D123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C09D123/0853—Vinylacetate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/04—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C09D127/08—Homopolymers or copolymers of vinylidene chloride
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D147/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002—Priming paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—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
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • 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
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2427/08—Homopolymers or copolymers of vinylidene chloride
    • 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
    • C08J2447/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds; Derivatives of such polymers
    • 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
    • C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
    • 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
    • C08J2493/00—Characterised by the use of natural resins; Derivatives thereof
    • 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
    • C08J2493/00—Characterised by the use of natural resins; Derivatives thereof
    • C08J2493/04—Rosin

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
CN202180016294.5A 2020-02-25 2021-02-24 复合聚合物膜 Active CN115397899B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2002633.2 2020-02-25
GBGB2002633.2A GB202002633D0 (en) 2020-02-25 2020-02-25 Composite polymeric film
PCT/IB2021/051538 WO2021171190A1 (en) 2020-02-25 2021-02-24 Composite polymeric film

Publications (2)

Publication Number Publication Date
CN115397899A CN115397899A (zh) 2022-11-25
CN115397899B true CN115397899B (zh) 2023-11-28

Family

ID=70108293

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180016294.5A Active CN115397899B (zh) 2020-02-25 2021-02-24 复合聚合物膜

Country Status (6)

Country Link
US (1) US20230151169A1 (https=)
EP (1) EP4110858B1 (https=)
JP (1) JP2023515165A (https=)
CN (1) CN115397899B (https=)
GB (1) GB202002633D0 (https=)
WO (1) WO2021171190A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202112836D0 (en) * 2021-09-09 2021-10-27 Dupont Teijin Films Us Lp Sealable peelable polyester films
GB202115792D0 (en) 2021-11-03 2021-12-15 Dupont Teijin Films Us Lp Metallised films
CN114474927B (zh) * 2022-01-11 2023-07-07 江苏睿捷新材料科技有限公司 一种包装材料
WO2024203319A1 (ja) * 2023-03-27 2024-10-03 東ソー株式会社 樹脂組成物、改質剤およびその改質剤を含む組成物

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1171483A (ja) * 1997-06-16 1999-03-16 Du Pont Mitsui Polychem Co Ltd エチレン重合体組成物及びそれを用いた易開封性シール材料
WO2006001548A2 (en) * 2004-06-29 2006-01-05 Tohcello Co., Ltd. An adhesive compound composition, laminated film using it and uses thereof
CN107108921A (zh) * 2014-11-27 2017-08-29 克里奥瓦克公司 可密封且可剥离的聚酯膜

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE697838A (https=) 1966-11-11 1967-10-02
US3634594A (en) 1969-08-05 1972-01-11 Nippon Musical Instruments Mfg Touch-responsive tone envelope control circuit for electronic musical instruments
US3670054A (en) 1969-10-29 1972-06-13 Shell Oil Co Block copolymers having reduced solvent sensitivity
US3700633A (en) 1971-05-05 1972-10-24 Shell Oil Co Selectively hydrogenated block copolymers
JP2006089521A (ja) * 2004-09-21 2006-04-06 Yasuhara Chemical Co Ltd 易剥離性を示すヒートシール用ホットメルト接着剤組成物
GB0515346D0 (en) * 2005-07-26 2005-08-31 Dupont Teijin Films Us Ltd Polymeric film
EP1757651A1 (en) 2005-08-25 2007-02-28 Dupont Teijin Films U.S Limited Partnership Bi-axially stretched breathable film, process for making the same and use thereof
EP2108673A1 (en) 2008-04-11 2009-10-14 DuPont Teijin Films U.S. Limited Partnership Plastic film having a high breakdown voltage
BRPI0808769A2 (pt) * 2008-09-11 2014-08-12 Lanxess Deutschland Gmbh Adesivos hotmelt
US20100167074A1 (en) * 2008-12-30 2010-07-01 Bunnelle William L Adhesive for difficult to adhere polymer coated board stock
GB2488787A (en) 2011-03-07 2012-09-12 Dupont Teijin Films Us Ltd Stabilised polyester films
JP6451281B2 (ja) * 2014-12-12 2019-01-16 東洋インキＳｃホールディングス株式会社 ヒートシール性樹脂組成物
JP6597271B2 (ja) * 2015-12-16 2019-10-30 東ソー株式会社 フィルム及び非結晶性ポリエチレンテレフタレート製容器用蓋材
US11660844B2 (en) * 2017-09-27 2023-05-30 Dupont Teijin Films U.S. Limited Partnership Composite polymer films

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1171483A (ja) * 1997-06-16 1999-03-16 Du Pont Mitsui Polychem Co Ltd エチレン重合体組成物及びそれを用いた易開封性シール材料
WO2006001548A2 (en) * 2004-06-29 2006-01-05 Tohcello Co., Ltd. An adhesive compound composition, laminated film using it and uses thereof
CN107108921A (zh) * 2014-11-27 2017-08-29 克里奥瓦克公司 可密封且可剥离的聚酯膜

Also Published As

Publication number Publication date
WO2021171190A1 (en) 2021-09-02
US20230151169A1 (en) 2023-05-18
EP4110858A1 (en) 2023-01-04
EP4110858B1 (en) 2024-07-03
CN115397899A (zh) 2022-11-25
JP2023515165A (ja) 2023-04-12
GB202002633D0 (en) 2020-04-08

Similar Documents

Publication Publication Date Title
CN115397899B (zh) 复合聚合物膜
KR101379122B1 (ko) 폴리에스테르 필름
CN1914098B (zh) 可热合易打开包装用乙烯/乙酸乙烯酯共聚物组合物
CN1183195C (zh) 树脂拉伸膜及其制造方法
JP7171893B2 (ja) 紙キャリアテープ用カバーテープ
CN113453899B (zh) 密封剂用树脂组合物、层叠体、包装材料及包装容器
JP2023515165A5 (https=)
EP0591391B1 (en) Peelable seal compositions
EP4363219B1 (en) (co)polyester resins for use as heat seal layers for containers and films incorporating such layers to seal and reseal containers
JP6291766B2 (ja) 易開封性積層フィルム、易開封性ラミネートフィルム及び蓋材
JP7395839B2 (ja) シーラントフィルム
JP2022154807A (ja) 防曇性コーティング組成物及びその用途
JP3794648B2 (ja) 金属ラミネート用ポリエステル系フィルム、ならびにそれを用いたラミネート金属板および金属容器
JP2021133590A (ja) 易開封性フィルムおよび包装体
JP7626904B2 (ja) シール可能な剥離可能なポリエステルフィルム
CN115698150B (zh) 复合聚合物膜
CN115785551B (zh) 一种易揭pe材料、易揭包装薄膜及其制备方法
TWI398483B (zh) A resin composition, a film and a molded article using the film, an extended film, a heat-shrinkable label, and a container
CN117165200A (zh) 医疗包装用耐蒸煮易揭膜及其制备工艺
JP2023088586A (ja) 多層ポリエステルシート及びそれを用いた包装用容器
JPH03169627A (ja) 易滑易接着フイルム
JPH07224211A (ja) ポリエステル樹脂組成物

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant