CN102504727A - Sealing adhesive strip for ribbed self-adhesive glass and manufacturing method thereof - Google Patents

Sealing adhesive strip for ribbed self-adhesive glass and manufacturing method thereof Download PDF

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CN102504727A
CN102504727A CN2011103251629A CN201110325162A CN102504727A CN 102504727 A CN102504727 A CN 102504727A CN 2011103251629 A CN2011103251629 A CN 2011103251629A CN 201110325162 A CN201110325162 A CN 201110325162A CN 102504727 A CN102504727 A CN 102504727A
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adhesive tape
butyl rubber
self
parts
folder muscle
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CN102504727B (en
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杜德升
于世花
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Shandong double circle sealing technology Co., Ltd.
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杜德升
于世花
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Abstract

The invention relates to a sealing adhesive strip for ribbed self-adhesive glass and a manufacturing method thereof. The sealing adhesive strip for the ribbed self-adhesive glass belongs to an elastic edge strip for sealing the edge of the glass of doors and windows, and comprises a built-in rubber strip rib and a butyl rubber sealant layer coated on the surface of the built-in rubber strip rib, wherein the butyl rubber sealant layer comprises the following raw material components in parts by weight: 30 parts of cross-linking butyl rubber, 5 parts of ethylene propylene diene rubber, 20 parts of polyisobutene of which the molecular weight is 40000, 40 parts of polyisobutene of which the molecular weight is 2400, 20 parts of amorphous state a-olefin copolymer, 30 parts of tackifying resin, 100 parts of filler, 5 parts of silicon dioxide, 10 parts of carbon black, 0.2 part of benzoquinone dioxime and 0.1 part of lead dioxide. The manufacturing method comprises the following steps: (1) banburying and kneading butyl rubber sealant; (2) coating and extruding. The invention provides the sealing adhesive strip for the ribbed self-adhesive glass, which has good low-temperature elasticity, simple construction process and low cost and is beneficial to environmental protection, a manufacturing method thereof. The sealing adhesive strip for the ribbed self-adhesive glass provided by the invention is suitable for sealing the glass of building doors and windows, curtain walls and automobile and ship doors and windows and the frame section bar of the glass.

Description

A kind of folder muscle self-adhesion glass capsulation adhesive tape and method of manufacture thereof
Technical field
The present invention is a kind of folder muscle self-adhesion glass capsulation adhesive tape and method of manufacture thereof.Belong to the sealing of windowpane edge and use elastic edgings.
Background technology
Door and window and curtain wall mainly are made up of duraluminum or steel-plastic structure and double glazing and low-E glass or simple glass; And the sealing of door and window and Curtain wall frame and glass; In whole building energy conservation, occupy very big ratio (15%); Present stage door and window and the sealing of curtain wall mainly with structure glue and joint strip associating or use separately; This has just proposed very high requirement to the close property performance and the stability to aging of sealer and adhesive tape, because poor sealing has directly influenced the building energy-saving technical indicator, and the bad use cost that then directly has influence on building energy-saving of stability to aging; Because the life cycle as door and window and curtain wall requires more than 20 years mostly; If the stability to aging of used sealing material and stopping property can not reach the working life of door and window and curtain wall, cause changing in advance, not only increase the use cost of building but also wasted financial resource and material resource.
In the prior art; The sealing of most of door and window curtain walls and glass, utilization structure glue and rubber adhesive tape, wherein structure glue is used structural silicone adhesive mostly; And the rubber adhesive tape mainly is PVC adhesive tape and EPDM adhesive tape; India-rubber strip be embedded on the framework except that with glass contact, wherein a part of India-rubber strip exposes the obnoxious flavour that in air, gives out some amount, and structural silicone adhesive mainly plays fixed action.
Glass that has and frame seal directly are coated with the seam crossing of notes at glass and framework with structural silicone adhesive.Also have human EVA adhesive tape general 4 millimeters to 6 mm thick, 10 mm wides, or 1 millimeter of PE foam adhesive tape is to 3 mm thick, both sides scribble pressure sensitive adhesive, are affixed on the framework the inside, are used for concealed sealing, another side is coated with the notes structural silicone adhesive.
The above prior art exists following not enough:
1. rubber and plastic modification sealed strip, the PVC sealed strip, its ageing-resistant degree is low, through daylight and hot environment, is prone to embrittlement in the short period of time, be full of cracks, watertightness and resistance to air loss sharply descend, and can discharge the obnoxious flavour contaminate environment.
Though 2.EPDM adhesive tape and other elastomer precursor gum bars have good elasticity, resistance to air loss and watertightness are poor, tracing ability is poor, and is not ageing-resistant, need add a large amount of softening agent for keeping good elasticity, the time slightly length will separate out, be prone to contaminate environment.
3. though use the structural silicone adhesive sealing that good elasticity and adhesive fastness are arranged, all use this sealing, then outward appearance is untidy, and the watertightness of structural silicone adhesive and poor air-tightness, and construction technology is complicated, and cost is high, and efficient is low.
4. scribble the EVA adhesive tape or the PE foam adhesive tape of pressure sensitive adhesive, though easy to use, clean and tidy, only play the effect of fixing glass and framework, there is not sealing effectiveness.
Summary of the invention
The objective of the invention is to avoid above-mentioned weak point of the prior art, and a kind of good stopping property that has is provided, ageing-resistant performance is good; Also have good low temperature elasticity and tracing ability; Have permanent autohension, environment is not discharged objectionable impurities, and construction technology is simple; Use cost is low, and it uses folder muscle self-adhesion glass capsulation adhesive tape and the method for manufacture thereof of validity period more than 20 years.
The object of the invention can reach through following measure:
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention is characterized in that being made up of built-in India-rubber strip folder muscle and butyl rubber sealant layer in its surface applied, and said butyl rubber sealant layer comprises as follows with component materials in parts by weight:
Figure BDA0000101480420000021
According to the following steps manufacturing:
1. butyl rubber sealant material banburying, pinch mixed
At first with cross-linking type butyl rubber, terpolymer EP rubber in the above-mentioned raw materials, the polyisobutene of molecular weight 40000~65000 and molecular weight 2400~3000 polyisobutene are warming up to 160 ℃ in the adding Banbury mixer according to the above-mentioned prescription of drafting; Pinch amalgamation hour, then, add non-crystalline state a-olefin copolymer APAO; Be cooled to 140 ℃, pinch amalgamation hour again, add tackifying resin; Continue to pinch and mix after 30 minutes, add filler, silicon-dioxide, carbon black, be cooled to 120 ℃; Add p-benzoqui(o)none dioxime, plumbic oxide, pinch and mixed 1 hour, extrude fully;
2. apply, extrude
Through 1. banburying of step, pinch the butyl rubber sealant material after mixing; To screw extrusion press, start screw extrusion press through the utilidor discharging, and organism temperature is set at 90 ℃ of constant temperature; The extrusion die temperature is set at 100 ℃, and this die head is the specifications design that requires according to product technology; Simultaneously; The India-rubber strip of having good positioning folder muscle with get into the screw extrusion press die head synchronously through 1. banburying of step, the butyl rubber sealant material pinched after mixing; In the screw extrusion press die head; The butyl rubber sealant material is coated on the India-rubber strip muscle material uniformly, and extrudes according to the shape and the size of design die head;
3. adhere to separate paper, rolling, packing
Reinforcement self-adhesion glass capsulation adhesive tape surface in that 2. step is extruded adheres to two-sided separate paper, is sent to rolling place through belt, rolling, packing.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention is a main raw with cross-linking type butyl rubber, and it has good resistance to air loss and watertightness, and stability to aging is splendid; Also have good elasticity and tracing ability, door and window and the curtain wall contact gap of itself and glass when variation of ambient temperature can change, and folder muscle self-adhesion glass capsulation adhesive tape of the present invention has permanent autohension; The moment keeps the fastness that links with adherend, makes it have permanent sealing property, folder muscle self-adhesion glass capsulation adhesive tape of the present invention; Under the long-time irradiation of daylight, no volatile matter does not discharge objectionable impurities to environment; Also have certain elasticity at low temperature below-40 ℃, its construction technology is simple, directly pastes on adherend to get final product; Efficient is high, and use cost is low, and it uses validity period more than 20 years.Muscle self-adhesion butyl adhesive tape is pressed from both sides in the present invention; Also has circular EPDM adhesive tape wherein; Make it have good resistance against compression, and folder muscle self-adhesion glass capsulation adhesive tape of the present invention is used in duraluminum or the steel plastic door and window framework and the glass cementation sealing, does not expose; Being environmental protection again attractive in appearance, is ideal door and window curtain wall sealing material.
The cross-linking type butyl rubber that adopts in the folder muscle self-adhesion glass capsulation adhesive tape butyl rubber sealant layer feed composition of the present invention is the terpolymer of iso-butylene, isoprene and Vinylstyrene.
Figure BDA0000101480420000031
Because bifunctional monomer's adding makes in the butyl rubber molecule and forms crosslinking structure, so the crosslinked butyl rubber good solubility-resistence can be good.
The unvulcanised glue of crosslinked butyl rubber does not have the cold flow phenomenon, and has higher nerve and green strength, compares with the butyl rubber of close degree of unsaturation to have better ozone resistance.And good appearance property is arranged with other components in the double glazing cavity sealant prescription of the present invention.Be to make the component of outstanding contributions to accomplishing task of the present invention.
Terpolymer EP rubber is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon.Its topmost characteristic is exactly its superior antioxidant, anti-ozone and erosion-resistant ability.
Non-crystalline state a-olefin copolymer has outstanding low temperature, high-temperature behavior, water resistance, anti-oxidant, anti-ultraviolet property, and and the good characteristics such as compatibility of organic phase.
The filler and the carbon black component that adopt in the folder muscle self-adhesion glass capsulation adhesive tape butyl rubber sealant layer feed composition of the present invention play an important role to the intensity that improves film.
The p-benzoqui(o)none dioxime and the plumbic oxide that adopt in the folder muscle self-adhesion glass capsulation adhesive tape butyl rubber sealant layer feed composition of the present invention are composite vulcanizing agents, and the intensity that improves film is played an important role.
Each component in the folder muscle self-adhesion glass capsulation adhesive tape butyl rubber sealant layer feed composition of contriver design remedies mutually, complements each other, the effect stack.Accomplished task of the present invention jointly.
The object of the invention can also reach through following measure:
Terpolymer EP rubber in the butyl rubber sealant layer feed composition of the present invention, the 3rd monomer is ethylidene norbornene ENB, propylene and ethylene content 68%~70%.It is optimized technical scheme.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention, 95 ℃~100 ℃ of the softening temperatures of the non-crystalline state a-olefin copolymer in the said butyl rubber sealant layer feed composition; Melt viscosity (190 ℃) 17000mPa..s~19000mPa..s.It is optimized technical scheme.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention, the tackifying resin in the said butyl rubber sealant layer feed composition is any one in terpine resin, C 5 petroleum resin, the C 5 hydrogenated petroleum resin, its softening temperature is between 100 ℃~115 ℃.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention, the filler in the said butyl rubber sealant layer feed composition is fineness >=1250 purpose Paris whites; Said silicon dioxide powder is the fumed silica powder; Said sooty specification is a pigment-grade.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention, said butyl rubber sealant layer comprises as follows with component materials in parts by weight:
Figure BDA0000101480420000041
It is an optimized technical scheme.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention, the cross-sectional shape of adhesive tape is rectangular, and the center of said India-rubber strip folder muscle overlaps with the rectangle intersection of diagonal.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention is characterized in that said joint strip is to extrude to apply into rectangle, and its thickness is 3.2 or 4.8 millimeters, and width is 9.5 or 12.7 millimeters.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention, said India-rubber strip folder muscle is the EPDM adhesive tape, is cylindric, its diameter is 2.7 millimeters.It is an optimized technical scheme.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention, step 3. described in rolling, be sent to rolling place through belt, be wound into 15 meter one volume, the packing.
The application of folder muscle self-adhesion glass capsulation adhesive tape of the present invention is characterized in that being applicable to building doors and windows, curtain wall, the sealing of car and boat windowpane and its frame section bar.
Folder muscle self-adhesion glass capsulation adhesive tape of the present invention and the disclosed technical scheme of method of manufacture thereof, comparing prior art has following actively technique effect:
1. a kind of good stopping property that has is provided; Ageing-resistant performance is good, also has good low temperature elasticity and tracing ability, has permanent autohension; Environment is not discharged objectionable impurities; And construction technology is simple, and use cost is low, and it uses folder muscle self-adhesion glass capsulation adhesive tape and the method for manufacture thereof of validity period more than 20 years.
2. stability to aging and UV resistant irradiation performance are good.
3. good airproof performance, the adhesive tape soft compressible can keep continuous free of discontinuities sealing.
4. environmental protection does not discharge objectionable impurities to outside atmosphere.
5. install fast, accurately, convenient, the shelf lives is long, can be lower than normal use the under-40 ℃ to the 95 ℃ environment.
Description of drawings
Fig. 1 is that folder muscle self-adhesion glass capsulation adhesive tape of the present invention is used synoptic diagram, among the figure:
1-liquid elastomer sealer
2-glass
3-folder muscle self-adhesion glass capsulation adhesive tape
4-adjustment height piece
5-India-rubber strip folder muscle.
Fig. 2 is the structural representation of folder muscle self-adhesion glass capsulation adhesive tape of the present invention, among the figure:
1-folder muscle self-adhesion glass capsulation adhesive tape
2-butyl rubber sealant layer
The two-sided separate paper of 3-
4-India-rubber strip folder muscle.
Embodiment
The present invention below will combine embodiment to make further detailed description:
Embodiment 1
Make folder muscle self-adhesion glass capsulation adhesive tape of the present invention according to following steps
1. butyl rubber sealant material banburying, pinch mixed
With cross-linking type butyl rubber Yanshan Petrochemical 1751) 30 weight parts, terpolymer EP rubber (Dutch DSM5508) 5 weight parts, polyisobutene 20 weight parts of molecular weight 40000 and molecular weight 2400 polyisobutene 40 weight parts add in the Banbury mixer and are warming up to 160 ℃; Pinch amalgamation hour, then, add non-crystalline state a-olefin copolymer APAO Germany Degussa 79220 weight parts; Be cooled to 140 ℃, pinch amalgamation hour again, add tackifying resin (the rare resin of terpene; 100 ℃ of softening temperatures) 30 weight parts continue to pinch and mix after 30 minutes, add filler 100 weight part Paris whites (1250 order), silicon-dioxide (vapor phase process) 5 weight parts, carbon black (pigment-grade) 10 weight parts; Be cooled to 120 ℃; Add p-benzoqui(o)none dioxime 0.2 weight part, plumbic oxide 0.1 weight part, pinch and mixed 1 hour, extrude fully;
2. apply, extrude,
Through 1. banburying of step, pinch the butyl rubber sealant material after mixing; To screw extrusion press, start screw extrusion press through the utilidor discharging, and organism temperature is set at 90 ℃ of constant temperature; The extrusion die temperature is set at 100 ℃, and this die head is the specifications design that requires according to product technology; Simultaneously; The India-rubber strip of having good positioning folder muscle with get into the screw extrusion press die head synchronously through 1. banburying of step, the butyl rubber sealant material pinched after mixing; In the screw extrusion press die head; The butyl rubber sealant material is coated on the India-rubber strip muscle material uniformly, and extrudes according to the shape and the size of design die head;
3. adhere to separate paper, rolling, packing
Reinforcement self-adhesion glass capsulation adhesive tape surface in that 2. step is extruded adheres to two-sided separate paper, is sent to rolling place through belt, rolling, packing.
Embodiment 2~embodiment 7
According to method and the step of embodiment 1, make folder muscle self-adhesion glass capsulation adhesive tape of the present invention according to the prescription of table 1
Table 1
Figure BDA0000101480420000071

Claims (10)

1. folder muscle self-adhesion glass capsulation adhesive tape is characterized in that being made up of built-in India-rubber strip folder muscle and butyl rubber sealant layer in its surface applied, and said butyl rubber sealant layer comprises as follows with component materials in parts by weight:
Figure FDA0000101480410000011
According to the following steps manufacturing:
1. butyl rubber sealant material banburying, pinch mixed
At first with cross-linking type butyl rubber, terpolymer EP rubber in the above-mentioned raw materials, the polyisobutene of molecular weight 40000~65000 and molecular weight 2400~3000 polyisobutene are warming up to 160 ℃ in the adding Banbury mixer according to the above-mentioned prescription of drafting; Pinch amalgamation hour, then, add non-crystalline state a-olefin copolymer; Be cooled to 140 ℃, pinch amalgamation hour again, add tackifying resin; Continue to pinch and mix after 30 minutes, add filler, silicon-dioxide, carbon black, be cooled to 120 ℃; Add p-benzoqui(o)none dioxime, plumbic oxide, pinch and mixed 1 hour, extrude fully;
2. apply, extrude
Through 1. banburying of step, pinch the butyl rubber sealant material after mixing; To screw extrusion press, start screw extrusion press through the utilidor discharging, and organism temperature is set at 90 ℃ of constant temperature; The extrusion die temperature is set at 100 ℃, and this die head is the specifications design that requires according to product technology; Simultaneously; The India-rubber strip of having good positioning folder muscle with get into the screw extrusion press die head synchronously through 1. banburying of step, the butyl rubber sealant material pinched after mixing; In the screw extrusion press die head; The butyl rubber sealant material is coated on the India-rubber strip muscle material uniformly, and extrudes according to the shape and the size of design die head;
3. adhere to separate paper, rolling, packing
Reinforcement self-adhesion glass capsulation adhesive tape surface in that 2. step is extruded adheres to two-sided separate paper, is sent to rolling place through belt, rolling, packing.
2. according to the folder muscle self-adhesion glass capsulation adhesive tape of claim 1, it is characterized in that the terpolymer EP rubber in the said butyl rubber sealant layer feed composition, the 3rd monomer is ethylidene norbornene ENB, propylene and ethylene content 68%~70%.
3. according to the folder muscle self-adhesion glass capsulation adhesive tape of claim 1, it is characterized in that 95 ℃~100 ℃ of the softening temperatures of the non-crystalline state a-olefin copolymer in the said butyl rubber sealant layer feed composition; Melt viscosity (190 ℃) 17000mPa..s~19000mPa..s.
4. according to the folder muscle self-adhesion glass capsulation adhesive tape of claim 1; It is characterized in that tackifying resin in the said butyl rubber sealant layer feed composition is any one in terpine resin, C 5 petroleum resin, the C 5 hydrogenated petroleum resin, its softening temperature is between 100 ℃~115 ℃.
5. according to the folder muscle self-adhesion glass capsulation adhesive tape of claim 1, it is characterized in that the filler in the said butyl rubber sealant layer feed composition is fineness >=1250 purpose Paris whites; Said silicon dioxide powder is the fumed silica powder; Said sooty specification is a pigment-grade.
6. according to the folder muscle self-adhesion glass capsulation adhesive tape of claim 1, it is characterized in that said butyl rubber sealant layer comprises as follows with component materials in parts by weight:
7. according to the folder muscle self-adhesion glass capsulation adhesive tape of claim 1, it is characterized in that the cross-sectional shape of adhesive tape is rectangular, the center of said India-rubber strip folder muscle overlaps with the rectangle intersection of diagonal.
8. according to the folder muscle self-adhesion glass capsulation adhesive tape of claim 1, it is characterized in that said joint strip is to extrude to apply into rectangle, its thickness is 3.2 or 4.8 millimeters, and width is 9.5 or 12.7 millimeters.
9. according to the folder muscle self-adhesion glass capsulation adhesive tape of claim 1, it is characterized in that said India-rubber strip folder muscle is the EPDM adhesive tape, be cylindric, its diameter is 2.7 millimeters.
10. the application of the folder muscle self-adhesion glass capsulation adhesive tape of claim 1 is characterized in that being applicable to building doors and windows, curtain wall, the sealing of car and boat windowpane and its frame section bar.
CN 201110325162 2011-10-24 2011-10-24 Sealing adhesive strip for ribbed self-adhesive glass and manufacturing method thereof Active CN102504727B (en)

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CN104723630A (en) * 2015-03-31 2015-06-24 解忠深 Self-adhered reactive ethylene-propylene-diene monomer rubber composite waterproof roll and production method thereof
CN104745117A (en) * 2015-03-31 2015-07-01 解忠深 Self-adhesive reactive ethylene-octene copolymer composite waterproof coiled material and production method thereof
CN104745123A (en) * 2015-03-31 2015-07-01 解忠深 Self-adhesion reactive, water-swellable and waterproof sealing material and production method thereof
CN107446248A (en) * 2017-10-10 2017-12-08 四川大学 A kind of self-adhesion flame retardant type butyl rubber series damping material and preparation method thereof
CN107866952A (en) * 2016-01-13 2018-04-03 马鞍山联洪合成材料有限公司 A kind of method of butyl rubber belt volume process units production butyl rubber belt volume
CN108699424A (en) * 2016-03-28 2018-10-23 Nok株式会社 Rubber composition and high pressure hydrogen storage equipment seal member using the rubber composition
CN109401684A (en) * 2018-08-23 2019-03-01 科顺防水科技股份有限公司 A kind of high cohesive strength hot melt butyl rubber and preparation method thereof
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CN112795337A (en) * 2021-01-18 2021-05-14 杭州之江新材料有限公司 Hot melt adhesive for hollow glass warm edge strips and preparation method thereof
WO2022151624A1 (en) * 2021-01-18 2022-07-21 杭州之江新材料有限公司 Hot melt adhesive for hollow glass spacer bar and preparation method therefor

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CN103254847A (en) * 2013-05-08 2013-08-21 安徽艳阳电气集团有限公司 Butyl rubber sealant and preparation method thereof
CN103254847B (en) * 2013-05-08 2015-11-25 安徽艳阳电气集团有限公司 Butyl rubber sealant and preparation method thereof
CN103980839A (en) * 2014-05-29 2014-08-13 烟台德邦科技有限公司 Butyl pressure sensitive material and preparation method thereof
CN104723630A (en) * 2015-03-31 2015-06-24 解忠深 Self-adhered reactive ethylene-propylene-diene monomer rubber composite waterproof roll and production method thereof
CN104745117A (en) * 2015-03-31 2015-07-01 解忠深 Self-adhesive reactive ethylene-octene copolymer composite waterproof coiled material and production method thereof
CN104745123A (en) * 2015-03-31 2015-07-01 解忠深 Self-adhesion reactive, water-swellable and waterproof sealing material and production method thereof
CN104723630B (en) * 2015-03-31 2017-04-05 解忠深 A kind of self-adhesion reactivity composite waterproof ternary ethylene-propylene rubber coil and its production method
CN107866952A (en) * 2016-01-13 2018-04-03 马鞍山联洪合成材料有限公司 A kind of method of butyl rubber belt volume process units production butyl rubber belt volume
CN107866952B (en) * 2016-01-13 2019-06-25 马鞍山联洪合成材料有限公司 A kind of method of butyl rubber belt volume process units production butyl rubber belt volume
CN108699424A (en) * 2016-03-28 2018-10-23 Nok株式会社 Rubber composition and high pressure hydrogen storage equipment seal member using the rubber composition
US10815407B2 (en) 2016-03-28 2020-10-27 Nok Corporation Rubber composition and sealing part for high pressure hydrogen apparatus using same
CN107446248A (en) * 2017-10-10 2017-12-08 四川大学 A kind of self-adhesion flame retardant type butyl rubber series damping material and preparation method thereof
CN107446248B (en) * 2017-10-10 2020-08-25 四川大学 Self-adhesion flame-retardant butyl rubber damping material and preparation method thereof
CN109401684A (en) * 2018-08-23 2019-03-01 科顺防水科技股份有限公司 A kind of high cohesive strength hot melt butyl rubber and preparation method thereof
CN110512659A (en) * 2019-09-24 2019-11-29 四川天宜石油化工工程有限公司 A kind of tank bottom edge seam Seepage technique
CN110512659B (en) * 2019-09-24 2024-03-22 四川天宜石油化工工程有限公司 Tank bottom edge seam seepage-proofing construction process
CN112795337A (en) * 2021-01-18 2021-05-14 杭州之江新材料有限公司 Hot melt adhesive for hollow glass warm edge strips and preparation method thereof
WO2022151624A1 (en) * 2021-01-18 2022-07-21 杭州之江新材料有限公司 Hot melt adhesive for hollow glass spacer bar and preparation method therefor

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Effective date of registration: 20191231

Address after: 276400 Tengfei entrepreneurial park, Yishui Economic Development Zone, Linyi City, Shandong Province

Patentee after: Shandong double circle sealing technology Co., Ltd.

Address before: 276400 Tengfei machinery Pioneer Park, Linyi, Shandong, Yishui

Co-patentee before: Yu Shihua

Patentee before: Du Desheng