摘要:
Disclosed herein are urea phenyl derivatives of the formula: wherein each R is an independently selected hydrocarbyl group and n is 2 or 3, and their use as nucleating agents for propylene polymers.
摘要:
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one nitroso inhibitor of the structure: wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, nitro, nitroso, halogen, COOR wherein R is hydrogen or alkyl, alkyl, and heteroatom-substituted alkyl; or adjacent groups R1, R2, R3, and R4 can be taken together to form a substituted or unsubstituted fused six-membered ring. Also disclosed is a composition of matter comprising: A) an ethylenically unsaturated monomer and B) at least one nitroso compound of the above-described structure.
摘要:
A method, system and computer readable instructions for executing a file with a file format is provided. An attempt is made to execute the file with a first computer application within a plurality of computer applications. Responsive to the first computer application being unable to recognize the file format of the file, a second computer application within the plurality of computer applications is selected to execute the file. The file is then executed using the selected second computer application.
摘要:
Protecting data files from being stolen or compromised in a data processing operation having stored data in a plurality of data files by receiving user requests for access to data files, determining whether said requests are unauthorized intrusions into the requested data files and, responsive to a determination that a request is an unauthorized intrusion, changing the identification of the requested data files by renaming the files. Preferably, the rename should be one which does not identify the contents of the file, i.e. the rename disguises the file contents. Then, it is also desirable that the renamed file be moved to a new “hidden” directory. In such a case, the renamed file is also assigned a covert name which indicates a covert location in the new directory. Then, there is provided a log referencing each renamed file to the covert name of the respective file so as to indicate the covert location of said file in said new directory.
摘要:
Disclosed herein are p-urea phenyl derivatives of the formula: wherein R1 and R2 are independently selected hydrocarbyl groups. These derivatives are useful as haze reducing agents in propylene polymers and copolymers.
摘要:
An apparatus and method for communicating the completion of asynchronous I/O requests is provided. In particular, the apparatus and method make use of a new function call which is capable of waiting for a predetermined number of I/O requests to be completed prior to returning to the calling application. Control blocks for the I/O requests are updated after a predetermined number of I/O requests have been completed, i.e. in a process context rather than in an interrupt context as in the known systems. In this way, the overhead associated with known asynchronous I/O system calls is reduced.