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31results about How to "Less yellowing" patented technology

Light refection sheet, process for producing the same and molding thereof

The light reflection sheet (I) of the present invention comprises a sheet having a thickness of 0.4 to 2 mm and comprising a polycarbonate resin composition containing (B) titanium oxide, and the sheet has a light reflectance of 98% or more and a light transmittance of less than 1%. It is excellent in a flame retardancy and a reflection characteristic. Also, the light reflection sheet (II) of the present invention is prepared by providing a light-fast layer which cuts or absorbs a UV ray in a thickness of 0.5 to 20 μm on at least one face of a base sheet having a thickness of 0.4 to 2 mm and comprising a PC resin composition containing a combination of 85 to 60 mass % of (A) a PC base polymer and 15 to 40 mass % of (B) titanium oxide. It is less yellowed and less reduced in a reflection characteristic even after used for a long period of time. Further, the light reflection sheet (III) of the present invention is prepared by providing a light diffusion layer which diffuses and reflects light in a thickness of 0.5 to 20 μm on at least one face of the same base sheet as in the light reflection sheet (II). It is improved in a light diffusing and reflecting property and can form a liquid crystal image plane having less luminance unevenness when it is used as a direct under type liquid crystal back light.
Owner:IDEMITSU KOSAN CO LTD

Fatliquoring agents for the flame-retardant treatment of leather

The present invention relates to fatliquoring agents for leathers, skins or hides, which contain neutral halogen-free organic phosphorus compounds, and the use of such fatliquoring agents for the flame-retardant treatment of leather and a process for fatliquoring in the production of flame-retardant leather, skin or hides.
Owner:LANXESS DEUTDCHLAND GMBH +1

Low temperature seedling hardening method for psammosilene tunicoides tissue culture seedling

The invention relates to a low temperature seedling hardening method for a psammosilene tunicoides tissue culture seedling. The method comprises the steps: transferring psammosilene tunicoides bottled seedling into a seedling hardening culture chamber, and fumigating in a closed manner for 20 min by virtue of potassium permanganate and formaldehyde; culturing the tissue culture seedling for 7 days in an environment with good ventilation at the ambient temperature of 16 to 18 DEG C, the light intensity of 1800 to 2000 Lx and the lighting time of 12 h/d; adjusting the temperature to 11 to 13 DEG C, adjusting the light intensity to 1500 to 1800 Lx, continuously culturing for 14 days, then taking out the psammosilene tunicoides tissue culture seedling by virtue of tweezers, soaking in a 800-time carbendazim disinfectant for 2 h, air-drying, and then transplanting the psammosilene tunicoides tissue culture seedling into a seedling hardening matrix. On the basis that the content of soluble sugar of plants is increased in a low temperature environment, the water content is reduced, the enzyme activity is reduced and air holes are closed, the stress resistance of the plant is finally improved, the rejuvenation period is obviously shortened after the seedling is transplanted, and the probability of the plant infected by root rot and stem rot is reduced, so that the transplanting survival rate is increased to 95 percent or more, and the seedling hardening transplanting survival rate is greatly increased.
Owner:SOUTHWEST FORESTRY UNIVERSITY +1

Waterborne polymeric dispersions

A polymeric composition for making aqueous polymeric dispersions, comprises hydrophilic macromonomer (I), hydrophobic polymer (II) and bridging monomer (III), wherein the hydrophilic macromonomer (I) and hydrophobic polymer (II) are grafted together in the presence of bridging monomer (III) and the hydrophilic macromonomer (I) has a structure according to formula (1): R—C(X)═CH2, wherein R is a polymeric group and X is a radical stabilizing group. The aqueous polymeric composition is used for making a coating composition, a printing ink, an adhesive, a sealant or caulking material.
Owner:ALLNEX NETHERLANDS BV

Unhusked rice dryer

The invention relates to the technical field of agricultural mechanical equipment, in particular to an unhusked rice dryer. The unhusked rice dryer comprises a heating barrel, a roller and a drive unit, wherein the heating barrel and the roller are arranged on a rack, and the drive unit drives the roller to rotate. The heating barrel and the roller are arranged coaxially and are in running fit. Abarrel cavity of the heating barrel communicates with a heat source. A feeding opening is arranged at one end of the roller, and a discharging opening is arranged at the other end of the roller. An unhusked rice drying chamber is formed by a clamp cavity between the roller and the barrel wall of the heating barrel. The unhusked rice dryer has the advantages that the unhusked rice dryer is provided, the heating barrel heats unhusked rice in the roller, the unhusked rice repeats turnover action in the drying process, excessive heating is avoided, and it can be guaranteed that drying is achievedsufficiently; and few cracking phenomena of the unhusked rice dryer during later processing happen, the rice breaking rate is low, and few yellowing phenomena happen. In addition, the dryer is simplein structure, the size can be determined according to actual application conditions, and the unhusked rice dryer is suitable for household operation and also suitable for the drying requirement of large farmlands and is wide in application range.
Owner:JIXI YUANDAO AGRI IND TECH

Use of phosphonic acid diesters and diphosphonic acid diesters and thermally curable mixtures containing phosphonic acid diesters and diphosphonic acid diesters

The invention relates to the use of phosphonic acid diesters and diphosphonic acid diesters (A) as reactants and / or catalysts for compounds (B) that can be reacted by transesterification, transamidation, self-condensation of N-hydroxyalkylamine groups and / or N-alkoxyalkylamine groups, transacetalization of N-alkoxyalkylamine groups and / or acetalization of N-hydroxyalkylamine groups. The inventionalso relates to thermally curable mixtures containing phosphonic acid diesters and diphosphonic acid diesters (A) and to methods for producing the same.
Owner:BASF COATINGS GMBH
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