Abstract:
The invention is directed to a two-pack high solids low VOC ambient curable coating composition, which includes cross linking and binder components. The crosslinking component includes a polyamine, a polyketimine, or a combination thereof. The polyamine is provided on an average with at least two amine functionalities per polymer chain and the polyketimine is provided on an average with at least two ketimine functionalities per polymer chain. A reactive diluent in the binder component includes a macromolecule substantially free from acrylate functionalities and having at least two acetoacetate functionalities per the macromolecule. If desired, the coating composition includes a binder polymer. The coating composition of the invention is particularly suited in automotive refinish coatings.
Abstract:
A substrate having a dendrimer monolayer film thereon is provided. The film can comprise either dendrimers, or dendrons (dendrimer branches). In each case, the monolayer films are covalently bonded to the desired surface. The resulting structure can be employed in a variety of applications including chemical sensors.
Abstract:
A highly weathering-resistant coating material exhibits an excellent water resistance and water repellency. The coating material contains a vinyl-type polymer that contains a pendant carbosiloxane dendrimer structure. The coating material is used on construction materials, buildings and structures undercoated with an organic coating material, automobiles, railroad rolling stock, ships, aircraft, and bridges, commercial and industrial plants, and electrical and electronic instruments and devices.
Abstract:
The present invention relates to hyperbranched polyaspartate esters containing repeating structural units corresponding to the formula I and/or II ##STR1## The present invention also relates to a process for the preparation of these hyperbranched polyaspartate esters by self condensing, via a transesterification reaction, at least a portion of the hydroxy and ester groups of the hydroxy aspartates corresponding to the above formula at a temperature of 60.degree. to 240.degree. C. to form hyperbranched polyaspartate esters and eliminating alcohols having the formula R.sub.1 --OH and/or R.sub.2 --OH.
Abstract:
Dense star polyamines having terminal group densities greater than extended conventional star polyamines exhibit greater and more uniform reactivity than their corresponding extended conventional star polyamines. For example, a second generation, amine-terminated polyamine dense star polyamine prepared from tri(2-aminoethyl)amine and aziridine has 4.7.times.10.sup.-3 amine moieties per unit volume (cubic Angstrom units) in contrast to the 1.7.times.10.sup.-3 amine moieties per unit volume contained by an extended conventional star polyamine. Such dense star polyamines are useful as calibration standards, high efficiency proton scavengers and in making size selective membranes.
Abstract:
The present invention relates to a method and an apparatus for forming a coating layer using a slit nozzle. According to the present invention, the slit nozzle applies an optical elasticity resin (a super view resin, SVR) on a panel for a flat panel display (FPD) to form the coating layer in an coating area on the panel as the slit nozzle moves backward in a coating layer beginning formation zone and moves forward in a coating layer ending formation zone. Therefore, the apparatus can surely prepare a bump having the demanded height on an outline of the coating layer when forming the coating layer. The method includes: a coating preparation step for locating the slit nozzle on a first location of the coating area on the panel for an FPD; and a coating step for forming the coating layer including a beginning portion, an ending portion, and an intermediate portion between the beginning portion and the ending portion on the coating area.
Abstract:
본 발명은 (A) 마이클(Michael) 유형의 수용체 기와 마이클 유형의 공여체 기 사이의 마이클 유형의 반응을 수행할 수 있는 반응기를 포함하는 거대분자 골격(scaffold); (B) 거대분자 골격에 부착되는 하나 이상의 작용성 잔기; 및 (C) 코팅 물질을 가교결합시킬 수 있는 하나 이상의 잔기를 포함하는 거대분자를 포함하는, 기재에 생물 오염 방지(anti-biofouling) 코팅을 제공하는데 적합한 코팅 물질로서, 상기 하나 이상의 작용성 잔기가 친수성 잔기를 포함하고, 상기 작용성 잔기가 거대분자 골격상의 반응기 및 반응성 친수성 잔기를 수반하는 마이클 유형의 반응으로부터 유도될 수 있는 코팅 물질에 관한 것이다.
Abstract:
분진 함유 표면과, 분진 함유 표면 상의, Tg가 -20℃ 미만인 코팅 중합체를 포함하는 코팅을 포함하는 물품 및 분진 감소 방법이 제공된다. 몇몇 실시 형태에서, 코팅 중합체는 Tg가 -30℃ 미만이며, 특정 실시 형태에서, 코팅 중합체는 Tg가 -45℃ 미만이다. 분진 함유 표면은 예를 들어 파쇄 석재, 석탄, 철광석, 자갈, 모래 또는 기타 골재(예를 들어, 루핑 과립) 또는 토양 표면일 수 있다. 일반적으로, 코팅 중합체는 폴리아크릴레이트, 폴리우레탄, 합성 및 천연 고무, 실리콘 및 기타 유기 중합체를 포함한다. 특정 실시 형태에서, 코팅 중합체는 아크릴 유화 중합체를 포함한다.