摘要:
The present invention provides a coating composition and a method of imparting self-healing, anti-microbial and anti-fouling properties onto a substrate at ambient temperature without external intervention. The coating composition comprises a product of an in-situ polymerization mixture comprising diisocyanate, polyol and saccharide. The polyol is a polyester or a polyether.
摘要:
Functionalized Group IVA particles, methods of preparing the Group IVA particles, and methods of using the Group IVA particles are provided. The Group IVA particles may be passivated with at least one layer of material covering at least a portion of the particle. The layer of material may be a covalently bonded non-dielectric layer of material. The Group IVA particles may be used in various technologies, including lithium ion batteries and photovoltaic cells.
摘要:
A system and method for fabricating a perovskite film is provided, the system including a substrate stage configured to rotate around its central axis at a rotation speed, a first set of evaporation units, each coupled to the side section or the bottom section of the chamber, a second set of evaporation units coupled to the bottom section, and a shield defining two or more zones having respective horizontal cross-sectional areas, which are open and facing the substrate, designated for the two or more evaporation units in the second set. The resultant perovskite film includes multiple unit layers, wherein each unit layer is formed by one rotation of the substrate stage, and the composition and thickness of the unit layer are controlled by adjusting at least the evaporation rates, the rotation speed and the horizontal cross-sectional areas.
摘要:
Provided are a mixed metal halide perovskite compound, and an electronic device including the same, wherein the mixed metal halide perovskite compound includes an organic cation, two or more kinds of metal cations, and a halogen anion.
摘要:
Asymmetrically substituted triorganotin compounds of the general formula ##STR1## wherein R.sup.1 is hydrocarbyl or --R.sup.2 COOR.sup.3 where R.sup.2 is alkylene and R.sup.3 is hydrocarbyl;X is halogen, hydroxyl, R.sup.4 COO-- where R.sup.4 is hydrocarbyl, --OR.sup.4, --SR.sup.4, --SR.sup.5 COOR.sup.4 where R.sup.5 is alkylene, ##STR2## carbamate or dithiocarbamate; Y is chlorine or bromine;Z is halogen, alkyl, trihalomethyl, alkoxy, thioalkoxy, phenyl or methylsulfonyl;a is 0 or 1 andA is oxygen or sulfurare useful fungicides and exhibit little or no phytotoxicity.
摘要:
Biocidal agents containing as the active ingredients a diorgano tin compound of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are various organic groups, (R.sup.3 + R.sup.4) may be oxygen, and X is oxygen or sulfur; methods for using such agents to kill bacteria and fungi, for example by treating a substrate such as wood or a textile with such agents; a method for making said diorgano tin compounds; and certain of said diorgano tin compounds as novel compositions of matter, are disclosed.
摘要:
Compounds having herbicidal and algicidal action are provided of the general formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are identical or different alkyl radicals, and R.sub.4 is an acid radical, or the radical of an acid compound or is ##STR2## with R.sub.1 ', R.sub.2 ', and R.sub.3 ' having the meaning of R.sub.1, R.sub.2 or R.sub.3 respectively, and wherein X represents oxygen or sulfur.
摘要:
In an article to be used in or under water and in constant contact with the water, at least the surface of the article is composed of an anti-fouling composition which comprises a polymer and an organo tin compound of the formula: ##STR1## wherein R.sub.1 is n-dodecyl and R.sub.2 and R.sub.3 are methyl. X is defined in the specification.
摘要:
Tri-2-norbornyltin compounds of the general formulae
EFFECTIVELY COMBAT FUNGI AND MITES WHEN APPLIED TO OBJECTS, PARTICULARLY PLANTS, THAT ARE SUSCEPTIBLE TO ATTACK BY THESE ORGANISMS. The present compounds are particularly advantageous in that they are non-phytotoxic and therefore will not damage plants to which they are applied. In the foregoing formulae each R1 is individually selected from hydrogen and lower alkyl radicals, X is a chlorine, bromine, fluorine, hydroxyl, carboxylate, phenoxy, alkoxy (-OR2) or mercaptide (-SR2) radical wherein R2 represents an alkyl or aryl radical containing between 1 and 12 carbon atoms, inclusive and Y is an oxygen, sulfur, or a sulfate radical.
摘要:
NEW ORGANO-TIN COMPOUNDS, SUITABLE FOR USE AS STABILIZERS FOR VINYL HALIDE RESINS, ARE OBTAINED BY REACTING A DIALKYLTIN OXIDE, HYDROXIDE, OR DIHALIDE WITH A MONOESTER OF A DIOL OR AN ACYLOXY ALCOHOL WITH A MRCAPTO-ACID.