Bls 28 protects polymers as well as organic pigments from uv radiation helping to preserve the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor weathering. Tinuvin 328 can be used alone or in combination with other functional additives such. Dermal ld50 values, obtained from four chemicals, were 2000 mgkg in rats and 5000 mgkg in rabbits. Tinuvin 928 may be used in combination with a light stabilizer of the sterically hindered amine class hals such as recommended below. Polyolefin film products are in a state of continuous improvement in regard to their physical properties. Tinuvin 234, tinuvin 329, and tinuvin 360 are commonly used as uvas, while tinuvin 770 and tinuvin 123 are commonly used as uvss. I process for adoption of the opinion in the mandate of 4 april 20 attached as annex 1, the executive director of echa requested the rac to provide an opinion on the specific target organ toxicity of uv320 and uv 328 taking into account the information provided in. Chemical name phenol, 22hbenzotriazol2yl4methyl cas number 2440224 chemical formula molecular weight 225 gmol applications tinuvin p provides ultraviolet protection in a wide variety of polymers includ. Uv328 is a chemical compound that belongs to the benzotriazoles. Longterm accelerated aging in an environment free of ultraviolet uv light of dam mar resin films, containing the hindered amine light stabilizer hals tinuvin 292, shows that for best results the concentration of the additive may be increased to 3% from the previously recommended level of 2%, and also that the benzotriazole uvabsorber tinuvin 328 can be omitted. Tinuvin 328 by basf is a 22hbenzotriazol2yl4, 6ditertpentylphenol grade.
An overview of chemistry and effects yijun ye and r. Uv320 is a highefficient light stabilizer, widely apply to in the plastics and other organic matter, including unsaturated polyester, pvc, pvc plasticizing glue, etc. It is designed to meet the high performance and durability requirements of all solventbased automotive, industrial and decorative coatings where other hals fail either related to their basicity or for. Tinuvin 5251 by basf is recommended for use in solventbased industrial coatings including uv curable paints. Its improved compatibility with polar systems and its low viscosity and color number allow for a wide spectrum of applications and simplify handling in production. Tinuvin 1 technical data sheet industrial coatings product description tinuvin 1 is a liquid uv absorber of the hydroxyphenyl benzotriazole class specifically developed for industrial coating applications.
Structure tinuvin 326 n n n cl ho molecular weight 315. Furthermore tinuvin 622 is effective as antioxidant. Characterization tinuvin p is an ultraviolet light absorber uva of the hydroxyphenyl benzotriazole class, imparting good light stability to a wide variety of polymers. Acts as a uv absorber, belongs to hydroxyphenyl benzotriazole class, which imparts outstanding light stability to plastics and other organic substrates. The product is highly effective to improve the light stability of polyethylene hdpe, lldpe, ldpe thick section parts, films, and tapes as well as polypropylene fibers and films. Detailed information is provided in the safety data sheet. Larger amounts should be pumped into adequate containers. Uv 328 has a melting point of 8086 c, a vapor pressure of 4,610. Its maximum ultraviolet absorption peak is 345nm, its light stability is similar to uv326 and uv327, but this product has good.
It is a 22h benzotriazol2yl4, 6ditertpentylphenol grade recommended for adhesives. Ultraviolet absorbent uv328 can dissolve in benzene, toluene, ethyl acetate and petroleum ether, slightly dissolve in ethanol and methyl alcohol, can not dissolve in water. Our portfolio contains two types of light stabilizers. Bioconcentration test of tinuvin 343 in carp, yakata, n. It is a high performance, noninteracting light stabilizer system which imparts outstanding weatherability to polyolefin based compounds, even in presence of acidic species. Overview bls 28 25973551 is a benzotriazole type ultraviolet light absorber uva, imparting good light stability for plastics and other organic polymers. It has a low volatility at high temperatures and high resistance to thermal degradation and can. Tinuvin 1600 belongs to the hpt hydroxyphenyltriazine chemistry class.
When flammable solvents are present, the container must be inerted or the system otherwise designed to prevent or contain an explosion. Offset of tinuvin 292 8 offset light stabilizers for coatings standard performance bzt 1 uva. King iii, ciba specialty chemicals, tarrytown ny 10591 abstract. Tinuvin 479dw will be updated to tinuvin 479dw n at a later stage. Tinuvin 328 can effectively inhibit the formation of alkyl free radicals in pp under. Get instant access to tinuvin 328 technical datasheet.
A sample mixture of the three uvas and two uvss was separated using high performance liquid chromatography hplc and the separated species were quantified using atmospheric pressure chemical ionizationmass. Tinuvin 328, one of several substituted hydroxyphenyl benzotriazoles, is effective in polyesters, pvc, impact ps, pc and acrylics. Btzcl chlorinated benzotriazole redshifted tinuvin 328 sol. Melting range 8141ocphysical properties flashpoint o238 c din 51584 specific gravity 20oc 1. Featuresbenefits tinuvin 326 has a wide range of indirect food approvals in polyolefins. Tinuvin 328 light stabilizer by basf technical datasheet. Uv292 is a liquid hindered amine light stabilizer hals especially developed for color sensitive coatings applications. This dossier is one of four dossiers for the svhcidentification of several. It belongs to hydroxyphenyl benzotriazole class, imparting good light stability to a wide variety of polymers. Tinuvin 328 by basf is a hydroxyphenylbenzotriazole. Acts as a uv absorber for ambient and low temperature cured systems. Tinuvin 320 has better effect when applied to in the polyurethane, polyamnamee, synthetic fibers especially those polyester and epoxy resins. Finally, uv328 fulfils also the criteria to be classified as stotre 2 and therefore has to be considered as toxic. Features strong absorption of ultraviolet radiation in 300400 nm region.
Mar 29, 2020 tinuvin 328 by basf is an uv absorber grade. Synergistic performance may be obtained when tinuvin 765 is used with a ultraviolet light absorber. Dec 18, 2017 tinuvin 5251 by basf is a blend of hpt uv absorber and a basic hals. The uv absorber tinuvin 328 is an effective stabilizer for preventing the radiationinduced degradation of pp, but the combination of hals with tinuvin 328 usually shows an antagonism. Tinuvin 249 is a liquid nonbasic hals for coatings. All product properties of this new series including the light stabilizing performance, active content, and product specifications will remain the same as for familiar tinuvin dw products. We,china tinuvin 327 3864991 suppliers and china tinuvin 327 3864991 manufacturers, provide tinuvin 327 3864991 product and the products related with china tinuvin 327 3864991 bohanchem.
Tinuvin 328 and 327 followed a similar msms f ragmen. Ultraviolet light absorbers uva and hinderedamine light stabilizers hals. Our tinuvin 5333 dw light stabilizer for joinery and decorative coatings. The oral ld50 values for chemicals with available data were. Hals trap free radicals maintain surface properties such as gloss and prevent cracking and chalking of paints.
Structure, properties, spectra, suppliers and links for. The combination effect of hindered amine light stabilizers. Tievf 1002 e august 2010 page 2 of 3 tinuvin 328 guidelines for use the use levels of tinuvin 328 range between 0. Tinuvin 249 is our new nonbasic hindered amine light stabilizer hals for robust coatings. Oct66 product name tinuvin 326 page 2 printing date. Get instant access to tinuvin 328 technical datasheet by basf. Tinuvin pa 328 ff by basf is a phenol, 22hbenzotriazol2yl4, 6bis 1, 1dimethylpropyl grade. The combination effect of hindered amine light stabilizers with uv. Important n otice purchase of tinuvin 1 alone does not permit the use of tinuvin. Hostavin 3311 liq offset of tinuvin 1 hostavin 3340 liq offset of tinuvin 400 hostavin 3310 pwd offset of tinuvin 328 hostavin 3326 pwd offset of tinuvin 326.
Btz benzotriazole btz multipurpose tinuvin 400 liq. Combinations provide best protection against gloss reduction, cracking, blistering, delamination, and color change. Pdf a sensitive procedure for the determination of five ultraviolet uv absorbers. Light stabilizers light is generally described as the radiation visible to the human eye at wavelengths between 400 and 750 nm. Hals multipurpose hals for various applications tinuvin 326 sol. Compatible with styrene homo and copolymers, acrylic polymers, unsaturated polyesters, polyvinylchloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral and elastomers. C 30 h 56 n 2 o 4 and c 21 h 39 no 4 chemical structure. Uv328 has a melting point of 8086 c, a vapor pressure of 4,610. Tinuvin 1 reaction mixture product containing mpeg, dpeg, and polyethylene glycol. Analysis of uv absorbers and stabilizers in polypropylene. Tinuvin 328 basf adhesives ingredients specialchem.
Tinuvin carboprotect is a very red shifted uva for the ultimate protection of carbon. Please note the following points when using this template. Pdf headspace solidphase microextraction followed by gas. Annex xv dossier proposal for identification of a substance. This visible light forms part of the electromagnetic radiation to which the earth is exposed. Tinuvin 791 reportedly offers excellent surface protection in thick sections. Used for articles, films, sheets and fibers during outdoor weathering. Annex xv identification of uv328 as svhc 6 part i note. I process for adoption of the opinion in the mandate of 4 april 20 attached as annex 1, the executive director of echa requested the rac to provide an opinion on the specific target organ toxicity of uv320 and uv328 taking into account the information provided in. High throughput analysis of polymer stabilizers with the agilent 6420 triple quadrupole lcms abstract the capability of highly sensitive and rapid flow injection coupled to multiple reaction monitoring mass spectrometry for comprehensive analysis of several polymer stabilizers, belonging to quite different chemical classes, is demonstrated. Methods and material for containment and cleaning up methods and material. Asia resins and additives for the coatings industry. Enzymatic synthesis of tinuvin article pdf available in enzyme and microbial technology 407. Pharos is a tool to help scientists, researchers, and product innovators identify problematic chemicals and collaborate to find safer alternatives.
Tinuvin performance additives for uv protection and durability are designed to protect and extend the lifetime of coatings. Contain with absorbent material sand, diatomaceous earth, universal absorbent, oil dri and dispose. Tinuvin 400 technical data sheet industrial coatings product description tinuvin 400 is a liquid hydroxyphenyltriazine hpt uv absorber designed to fulfill the high performance and durability needs of waterborne, solventborne, and 100% solids automotive and industrial finishes. Tinuvin xt 855 ff by basf is hindered amine derivative. Oct 01, 2006 tinuvin 111 is said to offer excellent extraction resistance and low pigment interaction and recommended for film and fiber. It is a 22hbenzotriazol 2yl4, 6ditertpentylphenol grade, a highly effective light. Tinuvin 328 is a high performance ultraviolet absorber. Overview of available physicochemical data for uv320, uv328, m1 and uv327 17. Grounding is required when emptying into a conductive container.