 Transmit and receive antenna element with feedback |
| It would therefore be an advantage to provide a MMIC transmit/receive circuit that does not require ... |
|
| Arrangement for drawing a braking parachute out of an article of submunition |
| Accordingly, an object of the present invention contemplates the provision of an arrangement of the ... |
|
| Flying decoy |
| The decoy of the present invention can be constructed as a small, compact disposable missile which ... |
|
| Line carrying projectile |
| OF PREFERRED EMBODIMENT In the drawing, a line carrying projectile embodying the present invention ... |
|
| Non-toxic frangible bullet core |
| We have discovered that, if a very high grade of zinc is utilized in the making of a bullet core, ... |
|
| Analog-to-digital converter |
| It is an object of the invention to provide a successive-approximation analog-to-digital converter ... |
|
| Devices incorporating phonon filters |
| Much to our surprise, we discovered that phonons can be transmitted efficiently through a plurality ... |
|
| Superconducting device including a thin chromium film with negative susceptibility |
| It is therefore an object of the present invention to improve superconductors. A further object of ... |
|
|
Process of using fine paper containing 2-oxetanone sizing agent in high speed precision converting or reprographic operations
| Details |
Inventors: Bottorff, Kyle J.; Brungardt, Clement Linus; Dumas, David Howard; Ehrhardt, Susan Merrick; Gast, John Charles; Zhang, Jian-Jian;
Assignee: Hercules Incorporated (Wilmington, DE)
Primary Examiner: Le; Hoa T.
Assistant Examiner:
Attorney, Agent or Firm: Kuller; Mark D., Jackson; Roy V.
Fine paper that is sized with a 2-oxetanone alkaline sizing agent and that does not encounter machine feed problems in high speed converting or reprographic machines, including continuous forms bond paper and adding machine paper, processes for converting the paper into envelopes, continuous forms bond paper and adding machine paper, and paper products of the processes. |
|
DETAILED DESCRIPTION OF THE INVENTION Alkaline sizing agents, that give levels of sizing comparable to those obtained with current AKD and ASA sizing technology, and improved handling performance in typical end-use and converting operations, have a reactive 2-oxetanone group and pendant hydrophobic hydrocarbon tails.
In that respect, they resemble traditional AKD-based sizing agents, but unlike the saturated straight chains in the fatty acids used to prepare conventional solid alkyl ketene dimer based sizing agents, the hydrocarbon chain in one or both of the fatty acid chlorides used to prepare this class of sizing agents contain irregularities in the chemical structure of the pendant hydrocarbon chains, such as carbon-to-carbon double bonds and chain branching.
Due to the irregularities in the pendant hydrocarbon chains, these sizing agents are not solid, and preferably are liquid, at or near room temperature.
Examples of this class of sizing agents are 2-oxetanone based materials prepared from oleic acid, and 2-oxetanone based materials prepared from either Pamak-1 or Pamolyn 380 liquid fatty acid (fatty acid mixtures available from Hercules Incorporated and consisting primarily of oleic and linoleic acid.
Other examples of fatty acids that may be used are the following unsaturated fatty acids: dodecenoic, tetradecenoic (myristoleic), hexadecenoic (palmitoleic), octadecadienoic (linolelaidic), octadecatrienoic (linolenic), eicosenoic (gadoleic), eicosatetraenoic (arachidonic), docosenoic (erucic), docosenoic (brassidic), and docosapentaenoic (clupanodonic) acids.
2-oxetanone multimers formed from mixtures of these fatty acids and a dicarboxylic acid are also examples, including: 2-oxetanone multimers prepared from a 2.
5:1 mixture of oleic acid and sebacic acid, and 2-oxetanone multimers prepared from a 2.
5:1 mixture of Pamak-1 fatty acid and azelaic acid.
Preferred examples are 2-oxetanone multimers with fatty acid to diacid ratios ranging from 1:1 to 3.
5:1.
These reactive sizing agents are disclosed as being prepared using methods known from Japanese Kokai 168992/89, the disclosure of which is incorporated herein by reference
|
|
Radio 
