Abstract:
A double-side display includes two display screens (101, 101′) mounted back-to-back. The display screens are driven by a first driving circuit (130) and a second driving circuit (160) respectively and share a backlight module (150). The first driving circuit and the second driving circuit receive data that a first data interface (104) and a second data interface (105) transmits from at least two computers correspondingly. The first driving circuit, the second driving circuit and the backlight module receive DC power at suitable voltages supplied from a DC/DC converting circuit (120).
Abstract:
A single reactor process for formation of block copolymers comprising aromatic ester mesogenic units containing flexible alkane spacers and polyester flexible coil units in the main chain thereof which comprises reacting an .alpha.,.omega.-bis(hydroxybenzoyloxy) alkane monomer with an aromatic acid chloride in the presence of a functionalized flexible coil oligomer under temperature conditions in which an acid chloride-terminated bis(hydroxyalkyl terephthalate) oligomer was first formed at a first, lower temperature and the block copolymer was then formed at a second, higher temperature by reacting this oligomer with the functionalized flexible coil oligomer.
Abstract:
An article comprising wood can be preserved by applying to the wood an effective amount for the preservation of the wood of a polymeric phenol sulfide having a tri- or higher sulfide bridge therein, which can be a polymeric alkyl phenol sulfide, such as one containing an alkyl group containing from one to about four carbon atoms in the alkyl group contained therein of the following formula, where R is the alkyl group,: where R is alkyl, m is from 1 to 3, n ranges from about 2 to about 10, and x is 3 or higher.
Abstract:
An article comprising wood can be preserved by applying to the wood an effective amount for the preservation of the wood of a preservative composition consisting essentially of a polymeric phenol sulfide having a tetra- or higher sulfide bridge therein alkyl phenol sulfide, such as one containing an alkyl group containing from one to about four carbon atoms in the alkyl group contained therein of the following formula, where R is the alkyl group,: ##STR1## where R is alkyl, m is from 1 to 3, n ranges from about 2 to about 10, and x is about 4.
Abstract:
Described are methods for modifying the surface properties of a polymer substrate by exposing the substrate to a densified fluid and a surface modifying agent. The densified fluid may be densified carbon dioxide and the surface modifying agent may be one which reduces the surface tension of the polymer substrate, for example as incorporated into a medical device such as a catheter.