CN103087473A - Composition for making seamless spherical screen, and application thereof - Google Patents
Composition for making seamless spherical screen, and application thereof Download PDFInfo
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- CN103087473A CN103087473A CN2011103311795A CN201110331179A CN103087473A CN 103087473 A CN103087473 A CN 103087473A CN 2011103311795 A CN2011103311795 A CN 2011103311795A CN 201110331179 A CN201110331179 A CN 201110331179A CN 103087473 A CN103087473 A CN 103087473A
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- bisphenol
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- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 239000003822 epoxy resin Substances 0.000 claims abstract description 23
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 23
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims description 15
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 6
- 229930185605 Bisphenol Natural products 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 150000004982 aromatic amines Chemical class 0.000 claims description 2
- 229940106691 bisphenol a Drugs 0.000 claims description 2
- 150000002191 fatty alcohols Chemical class 0.000 claims description 2
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 239000004593 Epoxy Substances 0.000 claims 1
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 claims 1
- 229920005989 resin Polymers 0.000 abstract description 22
- 239000011347 resin Substances 0.000 abstract description 22
- 238000003384 imaging method Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 3
- 230000003679 aging effect Effects 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 16
- 150000001875 compounds Chemical class 0.000 description 10
- 230000032683 aging Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000001175 rotational moulding Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- -1 glycidyl ester Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- UICXTANXZJJIBC-UHFFFAOYSA-N 1-(1-hydroperoxycyclohexyl)peroxycyclohexan-1-ol Chemical compound C1CCCCC1(O)OOC1(OO)CCCCC1 UICXTANXZJJIBC-UHFFFAOYSA-N 0.000 description 1
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 description 1
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 1
- HPILSDOMLLYBQF-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical compound C1OC1COC(CCC)OCC1CO1 HPILSDOMLLYBQF-UHFFFAOYSA-N 0.000 description 1
- WTYYGFLRBWMFRY-UHFFFAOYSA-N 2-[6-(oxiran-2-ylmethoxy)hexoxymethyl]oxirane Chemical compound C1OC1COCCCCCCOCC1CO1 WTYYGFLRBWMFRY-UHFFFAOYSA-N 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- 229940126062 Compound A Drugs 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- FDLQZKYLHJJBHD-UHFFFAOYSA-N [3-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=CC(CN)=C1 FDLQZKYLHJJBHD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- YMHQVDAATAEZLO-UHFFFAOYSA-N cyclohexane-1,1-diamine Chemical compound NC1(N)CCCCC1 YMHQVDAATAEZLO-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
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- 239000002932 luster Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229960001124 trientine Drugs 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention discloses a composition for making a seamless spherical screen, and an application thereof. The composition comprises the following components of, by weight, 120-60 parts of an epoxy resin and 30 parts of a curing agent. The inner surface and the outer surface of the sphere are smooth after the composition is sprayed on the seamless spherical screen, so that polishing treatment is not needed; at the same time, a mold can be made very thin, so that the mold is easy to remove; the resin film is cured quickly, so that efficiency is increased greatly; the quality of a transparent sphere sprayed by the composition is good, with an extremely high qualified rate (over 95%); the sprayed imaging layer is uniform, so that defects such as flow marks are not produced; and an ageing effect of ultraviolet rays can be prevented effectively.
Description
Technical field
The present invention relates to a kind of composition that seamless ball curtain is made in composition and the application thereof that optical ball curtain camera lens is used in projection, especially once shaped of making.
Background technology
The method of traditional fabrication is seamless ball curtain is the mode of rotational moulding and cast.Wherein, rotational moulding method efficient is very low, and Mold Making is cumbersome, and the ball curtain of rotational moulding easily produces current mark, bubble, in uneven thickness, and surface treatment is chronic; Although the pouring type efficiency ratio is higher, the ball curtain of cast easily produces bubble, and is in uneven thickness, surface treatment is chronic.
For defects, the applicant adopts the mode of spraying to make the ball curtain, has solved defects.The time of making mould in spraying coating process reduces half than other techniques, can realize batch production, and the same time can be completed the making of a plurality of ball curtains; And the ball curtain that spraying is made is without defectives such as current mark, bubbles; Saved surface treatment fully; Imaging layer can be evenly distributed on the ball curtain, and imaging effect is preferably arranged; Spraying coating process can make the even thickness of ball curtain.
The resin combination that uses in spraying coating process has following requirement: after solidifying, spheroid hardness is moderate, and anti-strike ability, tensile strength, bending strength, ultimate compression strength are preferably arranged, and transparency is high; Clear picture after the spray imaging layer, resolving power are high.Material environment is friendly, can not pollute.
Summary of the invention
In view of the above problems, the object of the present invention is to provide a kind of composition of making seamless ball curtain, after utilizing spraying (rotational moulding or cast also can) method that said composition is coated the spheroid mould, but once shaped prepares seamless ball curtain.Particular content of the present invention is as follows:
A kind of composition of making seamless ball curtain, described composition comprises following component:
Epoxy resin 120～60 weight parts;
Solidifying agent 30 weight parts.
Described epoxy resin is bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-A epoxy resin, A Hydrogenated Bisphenol A F type epoxy resin, glycidyl ester type epoxy resin and the monobasic of Fatty Alcohol(C12-C14 and C12-C18) or one or more in polynary glycidyl ether.
Described solidifying agent is fatty amine, cycloaliphatic amines, aromatic amine and their modifier, can also be organic acid anhydride class or organic hydrazides.
Described composition also comprises uv-absorbing agent 0.1～0.5 weight part.
Above-mentioned arbitrary described a kind of application of making the composition of seamless ball curtain, described composition are the batchings that sprays operation when making described seamless ball curtain.
Described seamless ball curtain is seamless interior pitching curtain.
Except the advantage that spraying coating process brings, resin combination of the present invention has following advantage in making seamless ball curtain: the ball curtain throws image definition, contrast gradient is high; Epoxy-resin systems after curing has good alkali resistance, acid resistance and solvent resistance; In addition, the curing speed of epoxy resin is moderate, relatively is fit to spraying coating process, particularly mass production; Through detecting, epoxy resin of the present invention and cured article are substantially nontoxic, belong to environment-friendly material, and three-waste free discharge, bring injury can for during use environment and operator's health aborning, meets environmental requirement.
Embodiment
Below, further illustrate content of the present invention with embodiment, but protection scope of the present invention is not limited in embodiment.To those skilled in the art in the situation that do not deviate from the other changes and modifications that the present invention spirit and protection domain are made, within still being included in protection domain of the present invention.
Embodiment 1
Pre-treatment: at first, make a whole spherical bladders, smear equably #8 wax with clean cotton on all outer surfaces of bladders, the number of times of waxing is generally smeared twice according to the size of bladders and the effect adjustment of smearing.
Preparation epoxy resin composition A:
Liquid bisphenol A epoxy resin 400 weight parts;
Liquid bisphenol f type epoxy resin 250 weight parts;
Isosorbide-5-Nitrae butanediol diglycidyl ether 50 weight parts;
Fully mix and obtain resin compound A.
Preparation curing agent mixture B:
M-xylene diamine 100 weight parts;
Triethylene tetramine 20 weight parts;
Polyetheramine 60 weight parts;
Fully mix and obtain curing agent mixture B.
Get 700 parts by weight resin mixture A, add the curing agent mixture B of 300 weight parts, stir.
Add uv-absorbing agent 5 weight parts in above-mentioned system, obtain target mixture, to delay the xanthochromia speed of resin system.
The ratio of above-mentioned each component changes and can change according to seasonal variation or room temperature, also can adjust according to the requirement of curing speed the ratio of each component.
The spraying operation: first the equatorial direction along ball sprays the above-mentioned resin compound for preparing equably, then spray equably one time perpendicular to equatorial direction, make the outside surface of whole bladders cover equably one deck resin compound (about the direction of spray ball, the operator can Self-adjustment, as long as can reach the requirement that the resin compound of spraying is evenly distributed).After the resin of last spraying solidifies fully, then repeat the spraying operation, so for several times, until the resin of spraying reaches weight or the thickness of expection.For accelerating curing speed, the spheroid that has sprayed resin compound can be heated under 55～65 ℃.
Mounting flange: 1, make a glass reinforced plastic stiffening ring close with the ball mouth diameter of bladders, with above-mentioned resin compound, stiffening ring is installed to the ball internal orifice of bladders.2, do a glass fiber reinforced plastic flange with the flange mould, outside surface can be used the black gel coat.3, with adjacent benzene type unsaturated polyester resin, promotor (cobalt iso-octoate) and talcum powder modulating mixture, add at last appropriate solidifying agent (cyclohexanone peroxide), be filled in rapidly the inboard of fiberglass flange after stirring, then be put into exactly the ball mouth in flange, lightly spheroid is down pressed, made unnecessary mixture overflow.After the mixture of ball mouth parched fully, the mixture that the ball mouth is unnecessary was removed, and polishes smooth.
Stripping operation: the bladders at ball mouth one circle place is pried open a crack from spheroid with thin blade; Fill at leisure in the crack with Steel Ruler, make and produce a space between bladders and ball, the use cutting machine cuts an openning in the position at Steel Ruler place with bladders; Steel Ruler is released carefully, get the elsewhere repetitive operation repeatedly, until bladders is cut into multi-disc.The bladders of chopping is pulled out in ball carefully, and the surfaces externally and internally of ball is rinsed well and wiped clean.If internal surface has obvious cut, can use respectively #360, cut is got rid of in the sand papering of #600.
Also can remove by the following method halation in case of necessity: with thinner, dumb light paint (volume ratio of thinner and dumb light paint is 1:3) is transferred evenly, spray equably the dumb light paint with clean spray gun at the internal surface of bladders, after dispersing Deng coating cloud, be put on testing jig and test, if also have halation phenomenon, continue the place spray dumb light paint of halation is arranged, until eliminate halation fully.
Spraying imaging layer: obtain mixture with light varnish conditioning function powder, proportioning is 1 gram function powder (granularity is about the titania powder of 1 micron): 6 milliliters of light varnish, with mulser, the mixture emulsify at a high speed was sheared about 5 minutes, with the complete wiped clean of the outside surface of spheroid, with spray gun, the mixture of described emulsify at a high speed is sprayed to equably the outside surface of spheroid with dust removing cloth; After the surface done substantially, spray contained the aforementioned mixture of function powder again.The spraying number of times depends on the size of spheroid and the weight of spraying function powder; After the outside surface drying, spheroid is put on testing jig tests, if also have the phenomenon of light leak, also to continue to spray the function powder, until imaging obtains seamless ball curtain evenly also fully without light leakage phenomena.
Embodiment 2
Working method is identical with embodiment 1, and different is the formula difference of the resin compound of preparation, as follows:
Epoxy resin composition A:
Liquid bisphenol A epoxy resin 500 weight parts;
Bisphenol-A epoxy resin 240 weight parts;
Butylglycidyl ether 60 weight parts.
Curing agent mixture B:
Cyclohexanediamine 100 weight parts;
Diethylenetriamine 30 weight parts;
Polyetheramine 70 weight parts;
Uv-absorbing agent 3 weight parts.
Get 800 parts by weight resin mixture A, add the curing agent mixture B of 200 weight parts.
Embodiment 3
Working method is identical with embodiment 1, and the formula of the resin compound of the preparation that difference is is different, and is as follows:
Epoxy resin composition A:
Bisphenol f type epoxy resin 550 weight parts;
Bisphenol-A epoxy resin 100 weight parts;
1,6 hexanediol diglycidyl ether 50 weight parts;
Curing agent mixture B:
Isophorone diamine 100 weight parts;
Making methylpentamethylenediamine diamine 80 weight parts;
Polyetheramine 70 weight parts;
Uv-absorbing agent 4 weight parts;
Get 700 parts by weight resin mixture A, add the curing agent mixture B of 250 weight parts.
The evaluation of the film layer of the seamless ball curtain (projection ball) that embodiment 1,2,3 obtains is as follows:
Embodiment 1: the uv-absorbing agent weight part is 5.Because uv-absorbing agent is originally as pale yellow powder, if add again, the color of resin compound will be affected, there is the ability of strong especially anti-ultraviolet aging in the projection ball of spray this moment, can guarantee that the ball curtain is controlled at 3% to 5% at the aging speed in early stage (in 2 years), and the speed aging in the time of back can slow down gradually.Epoxy resin composition 800 weight parts+curing agent mixture 200 weight parts.The spheroid that this formula is made has good plasticity, is not easy to break.But hardness can descend to some extent.If again increase the amount of Resin A material, with changing the characteristic of resin, make the spheroid of producing very soft, envrionment temperature is higher a little will be out of shape.Anti-strike capability preferably: 10～14Nm/m is arranged
2, tensile strength/Mpa:46～70, bending strength/MPa:90.0～120.0, ultimate compression strength/MPa:87.0～174.0.
Embodiment 2: the uv-absorbing agent weight part is 3, do not affect the color of resin compound, the projection ball of spray this moment still has the ability of stronger anti-ultraviolet aging, can guarantee that the ball curtain is controlled at 3% to 5% at the aging speed in early stage (in 2 years), and the speed aging in the later stage can slow down gradually.Epoxy resin composition 700 weight parts+curing agent mixture 300 weight parts.The spheroid that this formula is made, plasticity descends to some extent, and is slightly somewhat crisp, is not suitable for colder that use winter again.If again increase the amount of Resin A material, with changing the characteristic of resin, make the spheroid of producing very crisp, easily break.Anti-strike capability preferably: 10～14Nm/m2 is arranged, tensile strength/Mpa:46～70, bending strength/MPa:90.0～120.0, ultimate compression strength/MPa:87.0～174.0.
Embodiment 3: the uv-absorbing agent weight part is 4.Substantially do not affect the color of resin compound, there is the ability of stronger anti-ultraviolet aging in the projection ball of spray this moment, can guarantee that the ball curtain is controlled at 3% to 5% at the aging speed in early stage (in 2 years), and the speed aging in the time of back can slow down gradually.Epoxy resin composition 700 weight parts+curing agent mixture 300 weight parts.The spheroid that this formula is produced has plasticity preferably, is not easy to break, and hardness is preferably also arranged simultaneously.Anti-strike capability preferably: 10～14Nm/m2 is arranged, tensile strength/Mpa:46～70, bending strength/MPa:90.0～120.0, ultimate compression strength/MPa:87.0～174.0.
The evaluation of the image effect of the seamless ball curtain (projection ball) that above-described embodiment 1,2,3 obtains is as follows:
The transparency of the seamless ball curtain that the method is made is fine, and transmitance reaches more than 80%; Imaging clearly; Contrast gradient is (300:1) better; The visual angle is about 120 degree; Color and luster is more even.
Claims (5)
1. a composition of making seamless ball curtain, is characterized in that, described composition comprises following component:
Epoxy resin 120～60 weight parts;
Solidifying agent 30 weight parts.
2. composition according to claim 1, it is characterized in that, described epoxy resin is one or more in the monobasic of Fatty Alcohol(C12-C14 and C12-C18) or polynary Racemic glycidol ether type epoxy, bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-A epoxy resin, A Hydrogenated Bisphenol A F type epoxy resin.
3. composition according to claim 1, is characterized in that, described solidifying agent is fatty amine, cycloaliphatic amines, aromatic amine and their modifier, can also be organic acid anhydride class or organic hydrazides.
4. composition according to claim 1, is characterized in that, described composition also comprises uv-absorbing agent 0.1～0.5 weight part.
5. the arbitrary described a kind of application of making the composition of seamless ball curtain of claim 1 to 4 is characterized in that, described composition is the batching that sprays operation when making described seamless ball curtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103311795A CN103087473A (en) | 2011-10-27 | 2011-10-27 | Composition for making seamless spherical screen, and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103311795A CN103087473A (en) | 2011-10-27 | 2011-10-27 | Composition for making seamless spherical screen, and application thereof |
Publications (1)
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| CN103087473A true CN103087473A (en) | 2013-05-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597706A (en) * | 2015-02-03 | 2015-05-06 | 深圳市蓝宝石球显科技有限公司 | Preparation method of soft projected spherical screen and soft projected spherical screen |
| CN104950563A (en) * | 2015-03-30 | 2015-09-30 | 王建明 | Multichannel-projection aiming-training hemispherical-screen system, and manufacture method and application thereof |
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| CN101418070A (en) * | 2008-12-10 | 2009-04-29 | 北京玻钢院复合材料有限公司 | Epoxy resin combination, composite material and preparation method thereof |
| CN101784614A (en) * | 2008-01-31 | 2010-07-21 | 积水化学工业株式会社 | Resin composition and multilayer resin film employing the same |
| CN101880443A (en) * | 2010-07-08 | 2010-11-10 | 株洲时代新材料科技股份有限公司 | Low-viscosity epoxy resin system for resin transfer molding and preparation and using method thereof |
| CN102002144A (en) * | 2009-09-01 | 2011-04-06 | 日立化成工业株式会社 | Epoxy resin curing agent, its manufacture method and epoxy resin composition |
| CN102162988A (en) * | 2010-02-21 | 2011-08-24 | 无锡羿飞科技有限公司 | Fabrication method of seamless rear projection spherical screen and device thereof |
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- 2011-10-27 CN CN2011103311795A patent/CN103087473A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101784614A (en) * | 2008-01-31 | 2010-07-21 | 积水化学工业株式会社 | Resin composition and multilayer resin film employing the same |
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| CN102002144A (en) * | 2009-09-01 | 2011-04-06 | 日立化成工业株式会社 | Epoxy resin curing agent, its manufacture method and epoxy resin composition |
| CN102162988A (en) * | 2010-02-21 | 2011-08-24 | 无锡羿飞科技有限公司 | Fabrication method of seamless rear projection spherical screen and device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104597706A (en) * | 2015-02-03 | 2015-05-06 | 深圳市蓝宝石球显科技有限公司 | Preparation method of soft projected spherical screen and soft projected spherical screen |
| CN104597706B (en) * | 2015-02-03 | 2017-01-18 | 深圳市蓝宝石球显科技有限公司 | Preparation method of soft projected spherical screen and soft projected spherical screen |
| CN104950563A (en) * | 2015-03-30 | 2015-09-30 | 王建明 | Multichannel-projection aiming-training hemispherical-screen system, and manufacture method and application thereof |
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Application publication date: 20130508 |