摘要:
A reactive fluorinated polymer having polyester and polyether segments is mixed with a reactive melamine resin to form a coating composition. The polyether segment can include monomeric units from an oxetane monomer having pendant fluorine groups that are linked to the oxetane via an ether group. The melamine resin can be a lower alkyl etherified melamine-formaldehyde. The composition can be disposed on a substrate and treated to form a laminate.
摘要:
A coating composition is based on a polyester mixed with an alkyl-etherified melamine formaldehyde. The coating composition is partially cured in a first stage to provide a thermoformable partially cured, tack-free, non-blocking, coating layer, followed by application to generally a contoured substrate and thermoforming to conform thereto. The contoured partially cured coating layer is then heat cured to form a cured coating. A hydroxyl-terminated polyoxetane containing repeat units derived from oxetane monomers having one or two pendent —CH2—O—(CH2)n—Rf groups, wherein Rf is partially or fully fluorinated, can be esterified with polyester-forming reactants to form a fluorinated polyoxetane-modified polyester.
摘要:
A coating composition is based on a polyester mixed with an alkyl-etherified melamine formaldehyde. The coating composition is partially cured in a first stage to provide a thermoformable partially cured, tack-free, non-blocking, coating layer, followed by application to generally a contoured substrate and thermoforming to conform thereto. The contoured partially cured coating layer is then heat cured to form a cured coating. A hydroxyl-terminated polyoxetane containing repeat units derived from oxetane monomers having one or two pendent —CH2—O—(CH2)n—Rf groups, wherein Rf is partially or fully fluorinated, can be esterified with polyester-forming reactants to form a fluorinated polyoxetane-modified polyester.
摘要:
A coating composition is based on a polyester mixed with an alkyl-etherified melamine formaldehyde. The coating composition is partially cured in a first stage to provide a thermoformable partially cured, tack-free, non-blocking, coating layer, followed by application to generally a contoured substrate and thermoforming to conform thereto. The contoured partially cured coating layer is then heat cured to form a cured coating. A hydroxyl-terminated polyoxetane containing repeat units derived from oxetane monomers having one or two pendent —CH2—O—(CH2)n—Rf groups, wherein Rf is partially or fully fluorinated, can be esterified with polyester-forming reactants to form a fluorinated polyoxetane-modified polyester.
摘要:
The polymer of the present invention is derived from cyclic ether monomers, dioxane, dioxalane or trioxane and contains both pendant Rf fluoro groups as well as polar groups. These polymers have good wetting, or flow, or leveling properties. They can be reacted with other monomers, such as in the preparation of polyesters, and can be used in waxes, polishes and coatings.
摘要:
Acrylate, or methacrylate, or allylic, functionalized polyfluorooxetanes are disclosed for use in radiation curable coating compositions. These acrylate, or methacrylate, or allylic, functionalized polymers provide improvements in wetting and surface properties that have previously been provided by migratory chemicals such as waxes and oils. The partially or fully fluorinated side groups of the fluorooxetanes are believed to be disproportionately present at the interfaces between the coating and the substrate and between the coating and the atmosphere.
摘要:
Methods and apparatus are described and illustrated for producing GPS corrections, comprising: collecting measurements from a plurality of network reference stations; determining network corrections from the measurements; determining residual errors at one or more vernier-cell reference stations; and preparing vernier-cell corrections to compensate the residual errors within a vernier-cell region. Network correction streams are described and illustrated which contain network corrections derived from a plurality of network reference stations and residual error corrections derived from one or more vernier-cell reference stations. Methods and apparatus are described for employing such network correction streams in a virtual reference station to produce corrections and/or virtual measurements for use in a GPS receiver.
摘要:
A surgical tool for use in expanding a tubular structure having an inner surface defining a passage through the tubular structure for receiving surgical instruments includes a first leg having a first end engageable with the inner surface of the tubular structure. A second leg has a second end engageable with the inner surface of the tubular structure. The first and second ends are movable away from each other to apply a radially outwardly directed force to the inner surface of the tubular structure and cause expansion of the tubular structure to increase a cross-sectional area of the passage along a portion of the passage.
摘要:
Formulating multimedia content of an on-line interview, including transmitting during the on-line interview, over a data communications network from a first client device to a second client device, a media stream of content from an interviewee; simultaneously with the transmitting of the media stream from the interviewee, recording the media stream from the interviewee in a media file on the first client device; recording during the on-line interview in a media file on the second client device, a media stream of content from an interviewer; transmitting after the on-line interview, from the first client device to the second client device, the media file containing the recorded media stream from the interviewee; and merging the recorded media files into a single media file on the second client device for transmission to viewers of the on-line interview.
摘要:
Formulating multimedia content of an on-line interview, including transmitting during the on-line interview, over a data communications network from a first client device to a second client device, a media stream of content from an interviewee; simultaneously with the transmitting of the media stream from the interviewee, recording the media stream from the interviewee in a media file on the first client device; recording during the on-line interview in a media file on the second client device, a media stream of content from an interviewer; transmitting after the on-line interview, from the first client device to the second client device, the media file containing the recorded media stream from the interviewee; and merging the recorded media files into a single media file on the second client device for transmission to viewers of the on-line interview.