摘要:
Described is an examination system (1) for locating contamination (2) on an optical element (4) installed in an optical system (5), which examination system (1) comprises: a spatially resolving detector (6); imaging optics (7) that magnify in particular at a magnification of between 2 times and 100 times, for magnified imaging of a surface sub-region (3a) of the optical element (4) on the spatially resolving detector (6); as well as a movement mechanism (12), in particular a motorized movement mechanism (12), for displacing the imaging optics (7) together with the detector (6) relative to the surface (3) of the optical element (4) such that any desired surface sub-region of the surface (3) can be imaged at magnification.
摘要:
A method of processing an optical element which has a substrate (110) and a layer system (120) applied to the substrate (110), wherein the layer system (120) in a starting condition has a plurality of volume defects (130), wherein the method includes at least partially filling at least one of the volume defects (130) with a filling material (140). Also disclosed is an associated method of manufacturing an optical element.
摘要:
A method for preparing a dispersion for a pressure sensitive adhesive is provided, wherein the dispersions contain a copolymer (CP) having units of butyl acrylate and meth)acrylic acid; the method involving the steps of polymerizing an aqueous emulsion (EM) containing butyl acrylate, an anionic emulsifier and a non-ionic emulsifier, in the aqueous phase, under heating and in the presence of at least one water-soluble initiator (IN) of formula (I) MR1 (I) where M represents a metal cation, and R1 represents an anion of a peroxyacid or azo-group-containing acid, wherein (IN) is present in an amount of 0.5-1.5 wt. % (based on weight of the monomers); emulsifying-in (meth)acrylic acid while maintaining an elevated reaction temperature; and adding a second initiator (RI) to complete the polymerization.
摘要:
A method for preparing a dispersion for a pressure sensitive adhesive is provided, wherein the dispersions contain a copolymer (CP) having units of butyl acrylate and (meth)acrylic acid, the method involving the steps of polymerizing an aqueous emulsion (EM) containing butyl acrylate, an anionic emulsifier and a non-ionic emulsifier, in the aqueous phase, under heating and in the presence of at least one water-soluble initiator (IN) of formula (I)M R.sub.1 (I)where M represents a metal cation, andR1 represents an anion of a peroxyacid or azo-group-containing acid,wherein (IN) is present in an amount of 0.5-1.5 wt. % (based on weight of the monomers);emulsifying-in (meth)acrylic acid while maintaining an elevated reaction temperature; andadding a second initiator (RI) to complete the polymerization.
摘要:
What is disclosed is a method for sizing a textile yarn which comprises treating said yarn with a sizing solution comprising from 2.5 to 50 percent by weight of a polymer dissolved in an organic solvent, and then evaporating said solvent, said polymer being soluble in halohydrocarbons and being a saturated block copolymer comprised of at least two different unsaturated polymerizable hydrocarbons having two separated softening regions, one of which regions is below +20.degree. C. and one of which regions is above +20.degree. C., and wherein the blocks having the higher softening region form the disperse phase, i.e. above +20.degree. C., as well as sizing solutions for use in said method, and the sized yarns so produced.