Silicone acrylate

Table 5. One-Part Pigmented Siliconized Acrylic Latex Sealant ...

Silicone Acrylates. The development of rigid gas-permeable lens materials advanced significantly after the development of polysiloxanylaLkyl acrylates and methacrylates (1), as a component in hard lens materials (56,57), as claimed in a series of patents (58—62). 

Silicone acrylate technology, while known since the 1970s [68], has been applied to release coatings more recently [69]. Both homopolymerization of multifunctional silicone acrylates and copolymerization with organic acrylates is practiced [22,70]. Examples of blended systems will be deferred to the next section, understanding that an increase in the non-silicone component acts to increase the release level, analogous to the epoxy system described above. 

Silicone acrylates (Fig. 5) are again lower molecular weight base polymers that contain multiple functional groups. As in epoxy systems, the ratio of PDMS to functional material governs properties of release, anchorage, transfer, cure speed, etc. Radiation induced radical cure can be initiated with either exposure of photo initiators and sensitizers to UV light [22,46,71 ] or by electron beam irradiation of the sample. 

Silicone Acrylate Copolymers Designed Experiment Success... 

Network Characterization of Photocross-linked Silicone Acrylates... 

Figure 1. Reaction rate of the decrease of double bonds, conversion and swelling degree as a function of time. Insert Kinetic plot of swelling degree versus reaction time (silicone acrylate lb values from [3,4])...

One-part clear acrylic latex sealant formulation, 22 42t One-part manganese dioxide-cured polysulfide formulation, 22 4 It One-part pigmented siliconized acrylic latex sealant, 22 42t One-part RTV silicones, 22 596 One-part silicone cross-linkers, 22 33t One-part silicone sealant formulation, 22 34t... 

Silicone acrylates Acrylated organopolysiloxanes exhibit excellent release properhes and are used as release coahngs on papers and films. The silicone structure provides flexibility and resistance to heat, moisture, radiahon degradahon, and shear forces. ... 

The chemistry involved depends on the oligomer used silicone acrylates cure by radical mechanism epoxy-silicones require cationic curing systems. Silicone... 

Silicone 65 Silicone acrylates Silicone alkyds Silicone defoamers... 

Electronic devices can also generate electromagnetic and radio frequency interference waves that can interfere with other electronic devices. These waves must be modulated and leakage to the environment prevented. Plastics, silicones, acrylics, and polyesters (qv) that are filled with conductive fillers, such as silver, nickel, and copper, are used for this application (1). Although nickel-filled polymers are low cost and efficient, these are not preferred because of the carcinogenic nature of nickel powder. 

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