摘要:
A two-package moisture curable composition is provided. The composition comprises a first part comprising at least one silane terminated polyurethane and a second part comprising at least one silanol terminated polysiloxane; wherein the silane terminated polyurethane based polymer has at least one end group of the general formula: —A—(CH2)m-SiR1n(OR2)3-n, where A is a urethane or urea linkage group, R1 is selected from C1-12 alkyl, alkenyl, alkoxy, aminoalkyl, aryl and (meth)acryloxyalkyl groups, R2 is each substituted or unsubstituted C1-1-8 alkyl or C6-C20 aryl groups, m is an integer from 1 to 60 and n is an integer from 0 to 1; wherein the silane terminated polyurethane is prepared using natural oil polyols and their derivatives; and wherein the composition, after moisture cured, forms a surface whose water contact angle is larger than 101°. The composition is suitable for applications in antifouling coatings which afford low surface energy and improved mechanical performance.
摘要:
A method and wireless access terminal are provided for using a wireless data card individually to access a network. The wireless access terminal includes a data line switching module and a power line switching module; the method includes: when the wireless access terminal detects that the wireless data card is connected with a terminal through a universal serial bus (USB) cable, the power line and the data line of the wireless data card are respectively switched to connect the data line and the power line of the external USB interface thereon. By adopting the present invention, the user can still freely connect the 3G network at anytime and anywhere by connecting a common USB cable between the laptop and the wireless data card in the wireless access terminal in the case without the mains supply.
摘要:
The invention relates to an improved process for controlling the amount of crosslinking in polyolefin based articles such as fibers or films. The invention relates to mixing silane grafted material together with ungrafted material prior to crosslinking. The article can then be formed and cured, optionally with a curing catalyst which can preferably be applied to the surface of a shaped article. The amount of crosslinking will be controlled in part by the level of silane grafting on the grafted silane material as well as the amount of the grafted material in the blend.
摘要:
A multi-celled chip. The chip includes a plurality of hexagonal cells arranged in an array. A plurality of interconnects including Y's connect the cells in clusters of three cells each, so that each of the cells is interconnected.
摘要:
Knit fabric compositions have now been discovered that often have a balanced combination of desirable properties. Said fibric compositions comprise fibers of olefin block interpolymers or homogeneous branched ethylene polymers or a combination thereof. The fibers are characterized by an amount of crosslinking such that the fabric is capable of being molded.
摘要:
A fiber is obtainable from or comprises a blend of a propylene based polymer and an ethylene/α-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481-1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven, knitted or non-woven fabrics can be made from such fibers.
摘要:
A fiber is obtainable from or comprises an ethylene/α-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481−1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.
摘要:
A fiber is obtainable from or comprises a propylene/α-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481-1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.
摘要:
A waterborne polyurethane dispersion is provided. The waterborne polyurethane dispersion comprises residual moiety of a hydroxy-terminated siloxane compound in the main chain and exhibits good anti-stickiness while retaining superior mechanical properties. A laminated synthetic leather article prepared with said waterborne polyurethane dispersion as well the method for preparing the synthetic leather article are also provided.